Outlook can't connect to our Exchange server.

I give up, it just won't work.
When i add an account in Outlook and specify our server, it just stays at this window:
It never disappears. If i close it i get an unencrypted connection which i don't want.
I've probably configured it wrong somewhere, hints?

Hi,
For this issue, please ping the Exchange server from the client to check if you can ping Exchange server successfully.
Did you create the Outlook profile automatically or manually?
In order to troubleshoot the issue more efficiently, could you please describe the message in the Windows Security?
Best regards,
Belinda
Belinda Ma
TechNet Community Support

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Outlook 2010/2013 clients, outside of our main office, can't connect to our Exchange 2010 server

Hi,
Our remote users had been connecting to our Exchange server at our office since the Exchange server was installed in 2011.
Starting last Wednesday, Outlook 2010/2013 clients, outside of our main office, can't connect to our Exchange 2010 server. Outlook kept asking for a username and a password. At the same time, entries of Event 4625 were generated on the Event
log on out Exchange server.
Events 4625 has the following properties, "Logon Type: 3", "Failure Reason: An Error occured during Logon.", "Status: 0xc000006d", "Logon Process: NtLmSsp", and "Authentication Package: NTLM".
By the way, I had used a laptop to test this problem. Its Outlook work fine ion the main office, but it won't work outside of our office.
Does anyone have any idea?
Thanks.
Johnnie :(
Johnnie

http://blogs.technet.com/b/rmilne/archive/2015/03/17/update-015_2d00_027-revised-_2800_3002657_2900_.aspx
For additional people reading this thread, please update to v2 of that update.
Cheers,
Rhoderick
Microsoft Senior Exchange PFE
Blog:
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Mac computers in the office are not able to connect to our exchange server.

We started facing this problem about a month ago in our office where the apple computers can not connect to the exchange server via outlook or applemail or anything for that matter. All the other computers can connect to the exchange server with no problems
and the apple computers can even access the exchange server via OWA but the outlook and applemail apps would not connect to exchange. We have tried even deleting and re-creating some accounts on the apps but they still would not connect. At this point I am
at a complete loss and I looked everywhere through google to find out if anyone else has faced this problem but to no avail.
A little background information. This specific problem started happening after there was an un-expected series of power outages to the servers and they were shut down un-expectedly. I personally restored the servers and turned on all the services and made
sure everything was up and running after the power outages and everything was working fine. Also the first instance of the problem with the mac computers only happened two days after the servers were back up and running again and they had no issues in those
two days.
Right now we do not have that many mac users in our offices (only 3-4 users) and I have instructed them to use the OWA in the meanwhile but it is however an inconvenience to them. By now you may have realized that I am not a very experienced server admin
and I would really really appreciate any help. I extend my thanks in advance for any insight.

Hi Martin,
Thanks for the reply.
Right now I have Apple mail and Outlook installed on my mac laptop and both the applications do not connect to the exchange server. Apple Mail simply does a long process when I give my credentials to create my account and then it gives an error saying it
could not find the server while outlook quickly tells me that either the username or password is incorrect. At the same time I can connect to the server through outlook on my windows computer without any problems whatsoever.
From your reply, I gather that the VIA headers only affect Apple mail and should not affect Outlook app on the mac but right now, neither apps are connecting to the exchange server.
Either way I am trying to find out how to remove the VIA headers because it does not seem that we are using Kemp on the exchange server. Right now I do not have the in depth knowledge that I need because I was not involved in the implementation of our server
system, that was taken care of by a service provider and I was put in charge of mostly simple admin work. Now we are out of contract with the service provider so pretty much everything has fallen onto my shoulders.
If possible, would you mind pointing me in the right direction to finding out if I am using a L7 load balancer and how I would go about removing the VIA headers?

Can't connect to the exchange server

I'm having trouble geting Mail to work with the exchange server here at work. any ideas?

I tried Mick's suggestions but they don't help. One problem seems to be that my boxname on the exchange server unfortunately has a space in it ("firstname lastname", windows style). Upon initial setup the configurator won't allow this, but even if I set up a dummy username (without spaces) and then add the space into the account information afterward, I still see "could not connect to this exchange server" when I click on "Check Again" in the Mail Connection Doctor.
The outgoing SMTP server is configured as servername.companyname.local, port 25, no SSL, and no authentication, and outgoing mail works fine... so it's not a routing or DNS lookup issue on the local side.
The other annoying thing is that the instructions at
http://docs.info.apple.com/article.html?path=Mail/2.0/en/ml1098.html
say that the "Assist me..." button should bring up something called Network Diagnostics. But that button is always greyed out, and spotlight doesn't turn up any apps by that name anywhere on the system.
Can anyone suggest a way of troubleshooting just where things are breaking down? I looked at the most obvious console logs and didn't see anything.
Thanks in advance!
/H

Outlook on a remote Win 7 PC won't connect to our exchange server

Hi,
Since last Wednesday, users at our remote site aren't able to use their Outlook. When they open Outlook, Outlook keeps asking for a user name and a password. On the exchange server, there are several entries for EventID 4625.
EventID 4625 has the following failure information, "Failure Reason: An Error occured during Logon.", "Status: 0xc000006d", & "Logon Type: 3".
If one of the PC is brought back to the main office, it would work fine.
I have checked the firewall and opened a lot of ports for testing, but no luck. The same setup had been working for more than 10 month. A user first reported the problem on last Wednesday morning. Can this be cause by the monthly software
update?
Thanks.
Johnnie
Johnnie

Hi Johnnie,
Thanks for your question. What's the version of your Outlook client? Could you please share the complete event log with us? We shall take a further look then.
This event (Event ID: 4625) is generated when a logon request fails. It is generated on the computer where access was attempted.
Since this was first reported on last Wednesday, right after the Patch Tuesday of Microsoft, it could be caused by an installed update. I haven't seen any others reported the same issue, you might want to go ahead to troubleshoot the recently installed
updates and see whether it's caused by a faulty patch.
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.
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact
[email protected]

MS Outlook does npo0t connect to the exchange server

My outlook 2010 isn't connecting to Exchange server, what causes this?
It does not connect initially, but occasionally recovers on it's own. No error message, just does not connect. I uninstalled office and reinstalled 2 times. It appears to be working now. They are Microsoft Exchanges. There is not an option to test, there
is however, an option to "repair", but that didn't work.

Hi,
Since it's working now, I can't guarantee the real cause of this issue. You mentioned you fixed by reinstalling Office, there might be some damaged components of Outlook that caused the issue. After the reinstallationk, the components were fixed.
Please keep using Outlook, if the problem comes back, post back to let me know.
Regards,
Melon Chen
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.

Iphone 4S with iOS5 not connecting to our Exchange server.

Help!! i have upgraded to the new iphone with the ios5 and it will not sync with my exchange server! All other iphones in the office are iphone 4 and on the older os and they work fine. is there some magic settings that our IT guys need to change? the iphone 4s on AT&T works just fine!

I've found a fairly straight forward fix if you're having this problem, I'm sure it won't work for all but it will work for some. This is easier to try than restting your network settings and deleting your iCloud account, so try it first.
If you've already got an Exchange account set up but not working - you get the "Password Incorrect" message then; 1) delete the Exchange account. 2) set up a new Exchange account. 3) enter your Domain name. 4) continue set up as usual. My iPad 2 wifi/3G is connected to iCloud and my company Exchange server, I get the full Outlook suite email/contacts/calendar/etc.
I found that for some reason omitting the domain name during set up, even though Apple says it's optional, really isn't so that your device recognizes your Exchange server. Here's a quick tutorial I slapped up on You Tube. If this doesn't work then try the other methods.
Good luck.

Outlook 2013 client, not in domain, can't connect to the Exchange 2013 server.

Hello everyone,
A colleague and me are in the process of rebuilding our Hosted Exchange servers. Everything is working perfectly except for the local Outlook 2013 clients. They are not in the domain but in the same network (through VLANs) as our Exchange server, and still
they can't connect to Exchange without the use of Outlook anywhere. If we use Outlook Anywhere, it connects perfectly. If I ping the Exchange servers (1 CAS, 2 MBX servers) I get response with the right IP addresses.
We've tried to create a new profile, this goes without problems. We enter the FQDN (or IP address) of CAS server and the required usersname, and the FQDN gets resolved to the correct MBX server where the mailbox resides on. We complete the whole wizard and
then start Outlook. We then get the error that Outlook can't logon to the Exchange server.
Is this an authentication setting that is wrong or do we need to use Outlook Anywhere if the PC is not in the same domain as the Exchange server?
Thanks in advance!

Hi,
Agree with Martina, all Outlook clients use RPC over HTTP to connect to Exchange 2013. if the server version is Exchange 2013 SP1, only Outlook 2013 SP1 use MAPI over HTTP to connect to server after we enable the protocol MAPI over HTTP.
If you have any question, please feel free to let me know.
Thanks,
Angela Shi
TechNet Community Support

Connecting to MS Exchange server

We are going to implement outlook functionality in our project. So that, we are trying to connect Microsoft Exchange server.
Sofar, I found the some information reg this thing from google.
Before connecting MS Exchange server, first I have to connect LDAP server using JNDI API.
Is any Java API provided for connecting to MS Exchange server from LDAP. If is there, How can I connect to MS Exchange server using J2EE application from LDAP?

No, not from JNDI.
You can manage Exchange Server via CDOEXM.
Details on CDOEXM can be found at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/e2k3/e2k3/_esdk_reference_cdoex.asp
Not being a Java developer, I don't know how you invoke COM objects from Java.

TS3276 Hi there I am having trouble with my outlook express this is the first time it has happened it keeps telling me can't connect to the SMTP server and every password I have tried is incorrect this is for 'iCloud' very frustrating as all our phones ar

Hi there I am having trouble with my outlook express this is the first time it has happened it keeps telling me can't connect to the SMTP server and every password I have tried is incorrect this is for 'iCloud' very frustrating as all our phones are ok

Well I am feeling a bit silly now because that was all I had to do. In the past Workgroup Manager had always opened right up to the list of my users, I never even thought to click on that but apparently that was all that was needed.
I still am not sure how the iChat Server preferences changed themselves on me, but it is not the first time I have had weird "settings" issues with our Snow Leopard Server.
Thanks!

Exchange 2013 - Prevent Outlook Clients From Connecting To A CAS Server In A Different AD Site

Hi all,
I could really do with your help!
We have 3 physical sites, A, B & C, with sites A & B having a really fast low latency links between them, so from an AD point of view they are 1 site. Site C has links to both sites A & B, but the link is a lot slower.
We have an exchange design with 3 servers (one located at each physical site) that will form a DAG spread over the 3 physical sites. Ideally we will separate the CAS and mailbox server roles out and have them controlled by a hardware load balancer,
however we can have both roles on the same server if required.
What we want, is to prevent is a situation where an outlook client in site C connects to a CAS server in site A/B with the mail being hosted on a mailbox server in site C therefore traversing the network twice to get its mail.
From doing the Microsoft training course, my understanding is that in Exchange 2013, the CAS server only proxy's the request on to the mailbox server and does not redirect the request to the CAS server in the site where the mailbox server resides.
I have seen information online stating that a single namespace is the way to go as long as your site links/network bandwidth is good, but nothing to help with our scenario.
Has anyone else come across this situation and how did you get round it?
Thanks in advance :)

Hi Johnson,
Based on my knowledge, Outlook Client will connect to the CAS server which in local first.
Please check whether the CAS server that in site C is healthy.
If the CAS server in site C is healthy, please disable the CAS Load Balance for testing.
Also found a useful blog for your reference:
Exchange 2013 Client Access Server Role
http://blogs.technet.com/b/exchange/archive/2013/01/25/exchange-2013-client-access-server-role.aspx
Thanks
Mavis
Mavis Huang
TechNet Community Support

Our exchange server crashed and we lost all contact and calendar data. We found an app to get the contacts off of people's phone to import but can't find the same for calendar. How do I get my calendar info off my phone and in to new exchange server?

Our exchange server crashed and we lost all contact and calendar data. We found an app to get the contacts off of people's phone to import but can't find the same for calendar. How do I get my calendar info off my phone and in to new exchange server?

You'd have to think through this, but it seems like if you are using Outlook, and the items vanished from the Outlook client as well as the server,that you could re-populate Outlook using iTunes.

Hi - for some reason, my IPAD3 mail client has decided it can no longer connect to my Exchange server.

Hi - for some reason, my IPAD3 mail client has decided it can no longer connect to my Exchange server. It's worked like a charm for weeks. Any thoughts?
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Hi Jim,
Your issue is the most FAQ in the forums, it is an ongoing problem with Tiger waiting to be fixed by Apple. Till then, forget your aliases and use either Command-K or from the Finder Go-->Connect to Server and enter the remote Mac's IP address to connect.
Also, Open Utilities-->Terminal and type lookupd -flushcache (Press Return) and reboot. Do this for both macs.
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Need free OST viewer tool to help to view OST files without connecting to MS Exchange Server and MS Outlook.

Need free OST viewer tool to help to view OST files without connecting to MS Exchange Server and MS Outlook.

Hi Howard,
As I know, Microsoft does not provide any kind of inbuilt tool or free software to only view OST file, even without the connectivity with exchange server (Offline).
Try SysTools OST Viewer freeware which helps you to view all OST file save at your system in an easy way, whether you want to see the attachments or other items of OST file.
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Thanks
Clark Kent

Help? New iPad2 exchange email was working. Now won't download email and existing emails disappearing - newest disappearing first. Can connect to web. And my windows computer connects fine to exchange server. What's going on?

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Outlook can't connect to our Exchange server.

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