I can't connect with microsoft exchange

Just got a new MacBook Air....trying to connect to the Microsoft Exchange system in the office. Works fine for both my iPhone and iPad but not working for this MacBook Air...

Hey there ovillamil,
If you are having issues connecting with your Microsoft Exchange account, take a look at the resources below for troubleshooting steps:
OS X Mail: Using Microsoft Exchange (EWS) accounts - Apple Support
https://support.apple.com/en-us/HT201951
iCloud: Microsoft Exchange behavior with iCloud - Apple Support
https://support.apple.com/en-is/HT202375
Microsoft Exchange may require additional configuration in order to allow communication with certain devices. Consult with your IT manager or Administrator of your Exchange server for further questions about your Exchange setup.
Regards,
- Judy

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After lion 10.7.3 update messed my mac had to restore from time machine now Outlook won't connect with microsoft exchange, any idea?

after lion 10.7.3 update messed my mac had to restore from time machine now Outlook won't connect with microsoft exchange, any idea?

I've had a similar problem. On my first boot up after installing 10.7.4, Firefox would not open. Crashed every time. Safari was not affected. I have no idea if it was related to the flash plugin, but I did install a the latest version of that a couple of weeks ago.
Here's what fixed it: a second boot up.

Ipad mini 3 can't sync with microsoft exchange email (iphone 6 can)

I have an iPhone 6 and iPad mini 3 (verizon). Both are set up the exact same. At work, I am able access Microsoft Exchange email using the iPhone mail app with wifi. (I work underground and have no access to cell service) However, the iPad Mini will not allow me to access my email over wifi using the mail app.
Here is the tricky part. 1)wifi works perfectly on the iPad Mini for all other functions (safari, other apps, etc.). 2)when I get home (or anywhere else) the iPad mini is able to access my work email without a problem. I am not using my cellular connectivity at home, so it has nothing to do with that.
Nobody at work seems to be able to figure it out. Is it a MAC address issue, IP address or a blocked port? Help me please!
All passwords and other settings are the same on the iPhone and iPad. Also, this is not a gmail exchange account. I already know that gmail does not support new exchange accounts. This is a work hosted email.

Here is what I gather from my reading:
-- delete you exchange account then re-configure. Shakes things up.
-- reboot device.
-- re-install from backup.
-- use microsoft outlook for ipad. ( some business do not allow. check. Why? caches info on amazon cloud. ) You should try as a trial at least.
2)when I get home (or anywhere else) the iPad mini is able to access my work email without a problem.
VPN vs no VPN? Would seem there is a diff here.
Re-boot ipad.
Press and hold the Sleep/Wake button until a red slider appears, then drag the slider. Then press and hold the Sleep/Wake button until the Apple logo appears. page 128 iPad user manual.
force power down if the above give you trouble.
Hold down both the Sleep/Wake button and the Home button. Ten seconds or more. Hold until the Apple logo appears.
more details on re-booting:
    http://ipad.about.com/od/iPad_Guide/ss/How-To-Reboot-Your-iPad-Power-Off.htm
Restore to factory settings by loading the latest version of ios that your machine will support:
   Do a full backup of your device. Twice is best -- cloud and computer.
   "You can use iTunes to restore your iPhone, iPad, or iPod touch to factory settings and the latest version of iOS."
   http://support.apple.com/kb/HT1414?viewlocale=en_US&locale=en_US
   "You can put your iOS device into recovery mode, then restore it using iTunes.:
   http://support.apple.com/en-us/HT201263
At last resort you could consider DFU (Device Firmware Update). This could void your warranty.
    http://www.imore.com/tip-put-iphone-ipad-dfu-mode

Calendar Connectivity with Microsoft Exchange Server

Hi Everybody,
We want to use Calendar scheduling activity of Micrsoft Exchange Server in NW Portal Version 7 SP9. However we are stuck up with the following problem.
The Scenario is like:
1)The IIS Server and MS Exchange Server are in same domain.
2)MSX-A component has been /copied installed on IIS Server 5.
3)DLL registered.
4)We are using MS Oultook 2003 and Exchange Server 2003.
5)An IIS website has been created following the guidelines from a PDF document( Its wihtout SSO).
6)Logon Locally permissions given to all users.
When the CDO Version test is executed the common error "Microsoft Outlook not configured for Corporate/Work group access. Reconfigure MS Outlook and try again" is thrown.
As per the information from sdn only MS Outlook 2000 needs to be configured for this.
When the Data Retrieval test is executed an error message "CDO MAPI_E_NOT_INITIALIZED(80040605)" is shown.
Please share your views on this situation.
Suresh Yadav

If I were you, I would create an OSS customer message for this.
Maybe a quick fix though... Have you installed Outlook 2003 on the same server as IIS is running on? Have you run outlook at least once and connected it to your Exchange server, setting it as the default mail client?
Also, there is a note about what to do for exchange transports when you do a portal patch. Applying those steps might be a good idea even if you have not done an upgrade.
Good Luck.
Regards,
Graham.

Cannot open your default e-mail folders. You must connect to Microsoft Exchange with the current profile before you can synchronize your folders with your Outlook data file (.ost)

Fresh installation of Exchange Server 2013 on Windows Server 2012.
Our first test account cannot access their email via Outlook but can access fine through OWA. The following message appears - "Cannot open your default e-mail folders. You must connect to Microsoft Exchange with the current profile before you can synchronize
your folders with your Outlook data file (.ost)" is displayed.
If I turn off cached Exchange mode, setting the email account to not
cache does not resolve the issue and i get a new error message - "Cannot open your default e-mail folders. The file (path\profile name).ost is not an Outlook data file (.ost). Very odd since it creates its own .ost file when you run it for the first
time.
I cleared the appdata local Outlook folder and I tested on a new laptop that has never connected to Outlook, same error message on any system.
Microsoft Exchange RPC Client Access service is running.
No warning, error or critical messages in the eventlog, it's like the healthiest server alive.
Any help would be greatly appreciated. I haven't encountered this issue with previous versions of Exchange.

So it looks like a lot of people are having this issue and seeing how Exchange 2013 is still new (relatively to the world) there isn't much data around to answer this. I've spend ALOT of time trying to figure this out.
Here is the answer. :) - No I don't know all but I'm going to try to give you the most reasonable answer to this issue, in a most logical way.
First thing I did when I was troubleshooting this issue is that I ignored Martina Miskovic's suggestion for Step4 http://technet.microsoft.com/library/jj218640(EXCHG.150)because it didn't make sense to me because I was trying to connect
Outlook not outside the LAN but actually inside. However, Martina's suggestion does fix the issue if it's applied in the correct context.
This is where the plot thickens (it's stew). She failed to mention that things like SSL (which I configure practically useless - anyone who ever worked in a business environment where the owner pretty much trusts anyone in the company, otherwise they don't
work there - very good business practice in my eyes btw, can confirm that...) are some sort of fetish with Microsoft lately. Exchange 2013 was no exception.
In exchange 2003, exchange 2007 and exchange 2010 - you could install it and then go to outlook and set it up. And when outlook manual Microsoft Exchange profile would ask you for server name, you would give it and give the name of the person who you setting
up - as long as machine is on the domain, not much more is needed. IT JUST WORKS! :) What a concept, if the person already on premises of the business - GIVE HIM ACCESS. I guess that was too logical for Microsoft. Now if you're off premises you can use things
like OutlookAnywhere - which I might add had their place under that scenario.
In Exchange 2013, the world changed. Ofcourse Microsoft doesn't feel like telling it in a plain english to people - I'm sure there is an article somewhere but I didn't find it. Exchange 2013 does not support direct configuration of Outlook like all of it's
previous versions. Did you jaw drop? Mine did when I realized it. So now when you are asked for your server name in manual outlook set up and you give it Exchange2013.yourdomain.local - it says cannot connect to it. This happens because ALL - INTERNAL AND
EXTERNAL connection are now handled via OutlookAnywhere. You can't even disable that feature and have it function the reasonable way.
So now the question still remains - how do you configure outlook. Well under server properties there is this nice section called Outlook anywhere. You have a chance to configure it's External and Internal address. This is another thing that should be logical
but it didn't work that way for me. When I configured the external address different from the internal - it didn't work. So I strongly suggest you get it working with the same internal address first and then ponder how you want to make it work for the outside
users.
Now that you have this set up you have to go to virtual directories and configure the external and internal address there - this is actually what the Step 4 that Martina was refering to has you do.
Both external and internal address are now the same and you think you can configure your outlook manually - think again. One of the most lovely features of Outlook Anywhere, and the reason why I had never used it in the past is that it requires a TRUSTED
certificate.
See so it's not that exchange 2013 requires a trusted certificate - it's that exchange 2013 lacks the feature that was there since Windows 2000 and Exchange 5.5.
So it's time for you to install an Active Direction Certificate Authority. Refer to this wonderful article for exact steps - http://careexchange.in/how-to-install-certificate-authority-on-windows-server-2012/
Now even after you do that - it won't work because you have to add the base private key certificate, which you can download now from your internal certsrv site, to Default Domain Policy (AND yes some people claim NEVER mess with the Default Domain Policy,
always make an addition one... it's up to you - I don't see direct harm if you know what you want to accomplish) see this: http://technet.microsoft.com/en-us/library/cc738131%28v=ws.10%29.aspx if you want to know exact steps.
This is the moment of ZEN! :) Do you feel the excitement? After all it is your first time. Before we get too excited lets first request and then install the certificate to actual Exchange via the gui and assign it to all the services you can (IIS, SMTP and
there is a 3rd - I forgot, but you get the idea).
Now go to your client machine where you have the outlook open, browse to your exchange server via https://exchang2013/ in IE and if you don't get any certificate errors - it's good. If you do run on hte client and the server: gpupdate /force This will refresh
the policy. Don't try to manually install the certificate from Exchange's website on the client. If you wanna do something manually to it to the base certificate from the private key but if you added it to the domain policy you shouldn't have to do it.
Basically the idea is to make sure you have CA and that CA allows you to browse to exchange and you get no cert error and you can look at the cert and see that's from a domain CA.
NOW, you can configure your outlook. EASY grasshoppa - not the manual way. WHY? Cause the automatic way will now work. :) Let it discover that exachange and populate it all - and tell you I'm happy! :)
Open Outlook - BOOM! It works... Was it as good for you as it was for me?
You may ask, why can't I just configure it by manual - you CAN. It's just a nightmare. Go ahead and open the settings of the account that got auto configed... How do you like that server name? It should read something like [email protected]
and if you go to advanced and then connection tab - you'll see Outlook Anywhere is checked as well. Look at the settings - there is the name of the server, FQDN I might add. It's there in 2 places and one has that Mtdd-something:Exchange2013.yourdomain.local.
So what is that GUID in the server name and where does it come from. It's the identity of the user's mailbox so for every user that setting will be different but you can figure it out via the console on the Exchange server itself - if you wish.
Also a note, if your SSL certs have any trouble - it will just act like outlook can't connect to the exchange server even though it just declines the connection cause the cert/cert authority is not trusted.
So in short Outlook Anywhere is EVERYWHERE! And it has barely any gui or config and you just supposed to magically know that kind of generic error messages mean what... Server names are now GUIDs of the [email protected] - THAT MAKES PERFECT
SENSE MICROSOFT! ...and you have to manage certs... and the only place where you gonna find the name of the server is inside the d*** Outlook Anywhere settings in the config tab, un it's own config button - CAN WE PUT THE CONFIG ANY FURTHER!
Frustrating beyond reason - that should be Exchange's new slogan...
Hope this will help people in the future and won't get delete because it's bad PR for Microsoft.
PS
ALSO if you want to pick a fight with me about how SSL is more secure... I don't wanna hear it - go somewhere else...

Cannot Start Microsoft Outlook. Cannot open the Outlook Window. The set fo folders cannot be opened. You must connect to Microsoft Exchange with the current profil

Cannot Start Microsoft Outlook. Cannot open the Outlook Window. The set fo folders cannot be opened. You must connect to Microsoft Exchange with the current profile before you can synchronize your folders with your Outlook data file (.ost)
OK. This is a new outlook setup on a laptop. The mail account is on a MS Exchange Server 2010. The user can log on to their laptop no problem with their AD login and password. To setup the outlook profile we have checked the name OK. When we click finish
and try to start outlook we get the above error message. It is driving me pots as I have tried also of things. I have tried to connect without catching the files. The error message then says that the Exchange Server is down, yet we checked the name OK and
I can log on to the MS Exchange server and see the setup.
What else is it that I need to look at as I have tried everything. I will add that they one service I see not running is the Exchange RPC service. If I try to start it, it fails saying Some services stop automatically if they are not in use by other services
or programs.
What can I do?

The major cause of this problem is a corrupted Navigation Pane settings file – profilename.xml, where “profilename” is the name of your Outlook profile. A good sign that the
file is corrupted is when the size of the file is shown 0 KB. No one knows the precise reason why this takes place, but all versions of Outlook from 2003 to 2013 may get affected.
Other causes may be when you run Outlook in the compatibility mode, or if you are using a profile generated in an older Outlook version, or if the Outlook data file (.pst or .ost)
was removed or damaged as the result of faulty uninstallation or reinstallation of MS Outlook.
Follow the steps given below to resolve this problem
1. Recover Navigation Pane configuration file
2. Repair your Outlook PST file using Inbox Repair tool
3. Create a new Outlook profil and import data from the old PST file
4. Turn off Compatibility Mode
5. Start Outlook in Safe Mode
For more info, you can visit http://www.ablebits.com/office-addins-blog/2013/12/06/cannot-start-microsoft-outlook-solutions/

Hi i m using 4s and its updated but i cant configure with microsoft exchange for my gmail account. Anytime i tried to configure it the message comes connection to the server failed. Pls help me out.

Hi i m using 4s and its updated but i cant configure with microsoft exchange for my gmail account. Anytime i tried to configure it the message comes connection to the server failed. Pls help me out.
<Email Edited by Host>

Discontinued by Google. Read here:
http://googlesystem.blogspot.com/2012/12/google-sync-discontinued-for-gmail.html

Office 2013 - The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete.

Hi Team,
Just purchased and downloaded Office Home Premium and having trouble with Outlook. For what ever reason, I am unable to create account/add my email address ([email protected]) into the program. Through the set-up process it continuously
tells me that it is unable to connect to Microsoft Exchange, and that it must be online or connected to complete. In the end, it comes up with this pop-up listing a file. Something like that. Any pointers on how to resolve this or are a lot of people having
this problem..
Also, I installed this on my laptop (OSX 10.8.2)
and it worked fine, but not on my desktop (Win8 Pro 64-bit)
Thanks
Andi

Hello,
Does OWA work?
Does this issue occur on other users?
In Exchange 2013, most of the internal and external client becomes to use Outlook Anywhere(RPC over http).
Please make sure the autodiscover.domain.com is included in the certificate.
Thanks,
Simon Wu
TechNet Community Support
Hi I am having the same issue. Brand new computer, using Office 365 and trying to set up Outlook 2013 on Win 7 machine. OWA works fine. But cannot set up Exchange on my desktop.
I don't know what you mean by "In Exchange 2013, most of the internal and external client becomes to use Outlook Anywhere(RPC over
http).
Please make sure the autodiscover.domain.com is included in
the certificate."
Can you please walk me through this? Thank you.

The connection to Microsoft Exchange is unavailable

Environment: Windows 7 Pro 64bit
Setup: Fresh install of Office 2010 64-bit from office 365 web site on a fresh install of Win 7 Pro 64bit.
Issue: I first launched Outlook and tried to link a new account to the client by putting in my email address and password. It seemed to take it, but a new dialog box keeps poping up asking me for my password (it shows the email address
already filled in). It acts as if it does not like my password, but I know it is correct because I can log in and get my mail through the web access.
When after 5 or 6 tries, I press cancel, I get the error message " The action cannot be completed. The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action." Then I get a
dialog box listing the Microsoft Exchange Server and Mailbox.
Steps to resolve:
I am at a total loss on how to resolve this issue, is there anyway to manually connect to M.E> as it is just saying the connection is unavailable. All of the other threads dealing with this issue have been no help. I can sign into my account
at login.microsoftonline.net so I know the account is valid. I also receive email to my iPhone with the account and server. Any advice would be wonderful.
I went into Control Panel ->Mail, and deleted the profile. Then I tried to create a new profile and I got the same results as the first time through Outlook directly. Also, this is Windows 7 64 and office 64, but in Control Panel, it says
Mail(32bit). This is a completely new install so I don't know why it is not working. I have performed this exact same install on a dozen machines over the last 2 years without a single hitch.
I checked my DNS records and everything seems to check out. I haven't changed anything in DNS for over a year.
I am out of the office so I cannot copy some of the registry entries as some of the other posts recommend.
I ran remote connectivity analyzer. I don't know what it is saying, but below are the things that seemed to be irregular:
1) Attempting to test potential Autodiscover URL https://X123.com:443/Autodiscover/Autodiscover.xml
Testing of this potential Autodiscover URL failed.
2)Testing TCP port 443 on host X123.com to ensure it's listening and open.
The specified port is either blocked, not listening, or not producing the expected response.
Any help would really be appreciated.
Tom

Hi Tom,
Please manually configure your Office 365 account in Outlook 2010 to check whether the issue persists. About how to manually configure Outlook for Office 365 account, please refer to:
http://blogs.technet.com/b/hot/archive/2012/02/06/how-to-manually-configure-outlook-office-365.aspx
If the account can be manually configured but can’t be auto-configured by using autodiscover, please open Outlook - press CTRL key - right click on the Outlook icon from right bottom corner taskbar - Test Email AutoConfiguration. Put your email address -
uncheck use guessmart and secure guessmart authentication - click Test to check your Autodiscover service. If possible, please post the
Results tab and Log tab here for further troubleshooting.
Regards,
Winnie Liang
TechNet Community Support

The action cannot be completed. the connection to microsoft exchange is unavailable

Hi dear.
We have exchange 2013 and we want auto configure outlook 2007,2010 and 2013. In first time when we are setup exchange 2013 we can auto
configure outlook. But I don’t know now we cannot configure outlook. I think when we make some change in exchange certificate ( created by exchange in first time ) and after that we cannot configure outlook. Just we can set up pop3 and imap
for outlook. Now we have outlook with pop3 and outlook web app ( OWA ) and we don’t have problem with them, but we want our client see the all contact list in outlook. When we want configure outlook with Microsoft exchange server we get the error “
the action cannot be completed. the connection to Microsoft exchange is unavailable “.please help me. I don’t know how I solve the problem.

hi.
ok. this is the out put of autodiscover url in address bar :
"" <?xml
version="1.0" encoding="utf-8" ?>
- <Autodiscover
xmlns="http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006">
- <Response>
- <Error Time="10:30:23.5154338"
Id="3405091169">
<ErrorCode>600</ErrorCode>
<Message>Invalid Request</Message>
<DebugData
/>
</Error>
</Response>
</Autodiscover> ""
thanks for your help.
If it returns error code 600, your autodiscover service should be accessible in Exchange server. Please restart Microsoft Exchange Address Book service in Exchange server, then create a new Outlook profile in Outlook to have a try.

"The Connection to Microsoft Exchange is unavailable" when adding second Exchange account to Outlook 2013

I have a problem that I've found to be typical, just haven't found anything that describes my exact problem.
I'm having trouble adding a second Exchange 2010 server account to Outlook 2013 in one of the computers of the domain. Outlook 2013 will complain with "The Connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete
this action".
I've Googled and found many threads with the same error... however most of those seem to be either a problem with the server, or the Global Catalog in Active Directory, or the "connection method" (I've tried all found solutions to no avail).
This is not the case, since the first account is added with absolutely no problem. It can send and receive and I can delete the outlook profile and recreate it and it'll give no problems. I have this problem only when adding a second account.
This is a fresh Windows 8.1 install with an up-to-date Outlook 2013. I have other computers in the same domain and network, with the same setup (Win 8.1 + Outlook 2013) configured with two exchange accounts with no problem.
There are no connectivity problems, I can access that same account through OWA and in other computers on the network... the Global Catalog seems to be fine (shows two active DCs, which is correct).
I've tried deleting and recreating the outlook profiles, repairing the outlook installation, even deleting all outlook files in AppData and letting it recreate them, with no success.
Any hints of what could be going on?
Before I speak, I have something important to say.

Hi Javier,
Thank you for the update.
I have tested on my lab and get following result.
Lab: Exchange 2010, CAS Array (CAS01+CAS02), MBX01, DC
Type Server Field
Check name result
Changed Server Field
CAS01.domain.com
Yes
CASArray.domain.com
CASArray.domain.com
Yes
CASArray.domain.com
DC.domain.com
Yes
CASArray.domain.com
MBX01.domain.com
No
"The Connection to Microsoft Exchange is unavailable"
Based on my knowledge, the reason why inputing DC FQDN in the Server Field fixes this issue is that Outlook performs AD Lookup and finds the account configuration from AD, then back the CAS Array FQDN in the Server Field instead of DC FQDN.
Exchange 2010 is different from Exchange 2013, if you are using Exchange 2013, we need to input MailboxServerGUID.domain.com into Server Field.
If there is anything I’ve misunderstood, please don’t hesitate to let me know.
Thanks,
Steve Fan
Forum Support
Come back and mark the replies as answers if they help and unmark them if they provide no help.
If you have any feedback on our support, please click
here

The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete - Cant add Outlook accounts

Hi have recently started getting the following error message when setting up new accounts with Outlook 2007:
The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.
Outlook then prompts me to enter the username and password, i do so and get message again. This happens on Windows XP Professional and Vista, i cannot setup any accounts for new machines.
Points to note are that OWA works fine, and previous users who are already setup work fine also. It seems to be limited to setting up new Outlook 2007 accounts.
It can find the username fine. It comes up with green ticks underr the Online Search for your server settings:
Establish Network connection
Search for [email protected] server settings
Long on to server ---------- then it fails with a big red cross at this point
Recently i did add a second mail server to the network but it was not configured to talk to the other main mail server which was handling all the functions of mail box, CAS, hub transport. I had installed all the same roles on the second server with a view to move it across and retire the old server, the second machine is a different machine name from the main mail server. In summay my servers are:
svr001              Server 2003 R2 Enterprise x64 domain controller
mail                 Server 2003 R2 Enterprise x64 non-domain controller with exchange 2007 SP1
mail001            Windows 2008 Enterprise x64 non-domain controller with exchange 2007 SP1
The main box "mail" has been fine until i recently introduced this new server "mail001" into the network.
I am really stuck now and would really appreciate any pointers or steps to debug the above.
Many thanks,
Chris

The FIX IT here
http://support.microsoft.com/?kbid=319206 works, but only for a user who's already logged in (if you just run the fix it program and do nothing else). To make it work for all users you'll need to manually edit the registry as it says in the article.
To force Outlook to use a pre-defined global catalog server, use the following steps to set the following special registry parameter to point to the Fully Qualified Domain Name (FQDN). Doing this over-rides any setting in the MAPI profile.
Click Start, and then click Run.
In the Open box, type regedit.exe, and then click
OK.
Locate and then click the following key in the registry:
HKEY_CURRENT_USER\Software\Microsoft\Exchange\Exchange Provider
Note You may have to create the registry path.
On the Edit menu, click Add Value, and then add the following registry value:
Value name: DS Server
Data type: REG_SZ (string)
Value data: FQDN of the global catalog server
This allowed me to roll out a bunch of laptops and not have to worry about running the Fix It for each user.
update: Sysprep seemed to remove fix. Each time a new user logged into a newly imaged laptop (on domain) same error about Outlook 2007 cannot connect to Exchange. Have tried just about everything, but all I seem to be able to do is run this stupid
Fix it each time. Luckily I don't have 1000 machines to setup because then I'd be screwed.

Exchange 2013 Issue - Cannot open default email folders. you must connect to microsoft exchange

Hello all, this is my first post and nightmare to this issue because i believe i made mistake and overlook something. I search over the internet i cant find the best answer or maybe i missed something during the configurations. The exchange was working fine
not after i change the setting following the method
Configure External and Internal URL in Exchange 2012. after that, the users outlook experiencing disconnect from exchange. I restore back the previous setting but now I cant add any new user to the any Outlook version or change the server path. it will
cause the problem which show the message below:
"Can't open your default e-mail folders. You must connect to Microsoft Exchange with the current profile before you can synchronize your folder with your offline folders with your Outlook data file (.ost)"
I restarted the server and check all the Exchange services are running. The Outlook web is running and they able to receive and send out. The existing link to the exchange are still working so I not really sure what setting should i look into. I was thinking
about restoring back from Window Server Backup but was advise not to do it unless there are ways to look back the previous setting from the backup.
One of my ex-boss told me could be the Exchange Certificate but wasn't sure.
I really appreciate someone could advice and help me resolved this issue.
IT Tech Supports

Actually all are affected, but i manage to solved it running Virtual test version to trace the issue and finally able to fix it. Thanks for asking.
IT Technician

Outlook 2013 error: The connection to Microsoft Exchange is unavailable

Environment: Windows 7 Enterprise
Setup: Fresh install of Office 2013
Issue: When I launch Outlook I get the error:
The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.
Steps to resolve:
I made sure my server name and mail address were correct but this did not have an impact.
I am at a total loss on how to resolve this issue, is there anyway to manually connect to M.E> as it is just saying the connection is unavailable. All of the other threads dealing with this issue have been no help. I can sign into my account
at login.microsoftonline.net so i know the account is valid. I also receive email to my iPhone with the account and server. Any advice would be wonderful.
Now when I start up the application it tells me the same error and brings up something to alter the server and connection address.

Hi,
Have you tried to recreate a new mail profile and then test the issue?
To do this, please exit Outlook, and then go to
Control Panel >Mail... > Add…
Details about create a new mail profile, see:
http://support.microsoft.com/kb/829918/en-us
Also, you can try with this KB:
http://support.microsoft.com/kb/2264398
This issue occurs when the
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders registry key does not contain all of the required data. Specifically, these problems occur if the
AppData string value is missing from this registry key.
To resolve this issue, import the
User Shell Folders registry key from a working Windows User Profile.
Hope this helps.
Best Regards
Steve Fan
TechNet Community Support

Cannot start Outlook 2013: "name cannot be resolved" / "connection to Microsoft Exchange is unavailable" / "___.ost is not an Outlook data file (.ost)"

My work e-mail has a double-login system, where my credentials for work access are one username and my e-mail is an alias of that first username, so they differ from one another. I suspect that's why I've been having the hardest time with Outlook 2013. I
was able to add my account just fine once but changed my mind about using Outlook and removed the account. Now I can't get back into Outlook for the life of me. The error messages that show up are:
1. It asks me to verify server and Mailbox. I've tried it with both usernames (the official work username and the e-mail alias) as my Mailbox info, followed by the email domain (even tried it without the domain) and it still won't verify when I click "Check
Name".
2. This message comes up: The name cannot be resolved. The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.
3. Then once I click "OK" another pop-up says: Cannot start Microsoft Outlook. The file C:\Users\FirstLastname\AppData\Local\Microsoft\Outlook\FirstLastname.ost is not an Outlook data file (.ost).
Help?

Hi,
As per this KB article, the issue might occurs when some required registry key does not exist on your computer.
Please try the steps mentioned in it and see if it is helpful to you:
http://support.microsoft.com/kb/2264398/en-us
Regards,
Ethan Hua
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.

I can't connect with microsoft exchange

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