Internally installed Outlook 2010 prompts for password using external smtp email as user id

Hi,
After exchange 2007 to exchange 2013 migration all internally connected outlooks 2010 (xp, vista, win7, win8) prompt for password using external email user address as user id.
Below some of my settings and informations.
Internal domain: contoso.local
External domain: contoso.com
Exchange is NOT published to Internet at all.
Internally OWA, ECP runs OK.
Test-OutlookWebservices with user.name(at)contoso.local or contoso\user.name - runs OK
Test-OutlookWebservices with user.name(at)contoso.com - fails
Common scenario - (all happens internally):
1.User starts Outlook
2.Outlook prompts for password with default user.name(at)contoso.com as id
- while user tries to authenticate using his domain password - outlook re-prompts
- while user changes id from user.name(at)contoso.com to user.name(at)contoso.local or contoso\user.name and authenticates - Outlook connets to exchange and till next Outlook it runs ok.
I am bus with that issue since 1 week and I am already bit tired. I was looking for answer via gogle/bing and went through tons of "Outlook perpetually prompts for password" threads and blogs. No success.
Do you have any clue where else start to play with that?

Hi,
Thank you for answer - no luck
>NExt og to Connection tab - Exchange Proxy settings - Proxy authentication settings - is it set
>to NTLM or Basic?Give it a try on one of them.(if set to NTLM change to basic and vise versa).
On both settings the same results - Outlook is prompting for password.
>Another thing you could try is og to Internet Explorer - tool -internet options- Security - click local
>intranet - >custom Level and scroll Down to bottom and put check mark on automaticly logon
>With current username >and password.
>Do this on Trusted sites as well,if Your domain is listed under trusted sites
The same results - Outlook isprompting for password.
Should not be some kind of mapping set somehow in AD between user.name(at)contoso.com and user.name(at)contoso.local?
I have impresion that issue is somewhere in the fact that outlook is trying to connect using contoso.com instead of contoso.local in ntlm credentials.

Similar Messages

Outlook 2010 prompting for password

Hi everybody. I ran into an issue yesterday morning where at one of our sites Outlook 2010 has started prompting for a username and password. If the user types in their username as "MYDOMAIN\myuser" and their password, it lets them in but the Exchange
status shows as "Disconnected". If the user sets their username to just "myuser" without the domain on the front it lets them in and works as expected until they close Outlook, at which point they have to enter their credentials again.
The strangest thing about this is that it's only affecting one of our sites and only Outlook 2010. Users running 2007 and 2003 do not have the problem and only users at this physical location have the problem. Does anybody know where I can look? I have tried
clearing stored credentials, created new Outlook profiles and reset passwords. None of these things seem to have had any effect.

After changing a ton of outlook settings, deleting the user's account profile on outlook, deleting their domain profile from the effected computer, trying to fix the registry, deleting stored credentials, etc.... almost everything else I found something
that FINALLY worked for me after over a year and about 12 different users being effected.
in the past I would just give up after much frustration and upgrade them to Office 2013 but that gets very expensive especially when I have 57 other users that could potentially run into the same issue.
Here is what I did.
- back up the user's data. log out and log into local admin
- delete the user from the local registry
- repair Office 2010 through control panel/programs, restart
- have user log back in with their credentials to make new local profile. recover their backed up documents. log out and log back in as local admin.
- install hotfix KB2597011
- restart computer
- install hotfix KB2583935
-restart computer
- log in, open outlook and setup user's account.
Some of these steps may be skipped as I didn't find the hot-fixes until after I repaired office, however I am just providing what I did in the process to end up with a working outlook again.
Some things unique to my situation that may or may not help.
- I noticed some of the computers have Office2010 32bit installed on 64 bit machines.
- Some of the users were swapped over using a profile mover program when we moved to a domain environment.
- For me this always happens when the user's passwords expire and they have to log in to the portal to change it. Then outlook starts with the repeated prompt for passwords. It is always computer specific and nothing but what I provided above has worked
other than re installing windows 7 and then office or upgrading to office 2013.

Outlook 2010 prompting for password each login to Exchange 2013

We have a new member server w/ Windows Server 2012 and Exchange 2013. User's mailboxes were migrated from an old Windows Server 2003 server w/ Exchange 2003 by creating new empty mailboxes in Exchange 2013 then we exported/imported
.pst files instead of migrating exchange stores. Every time any users opens Outlook, they are being prompted to log in with domain credentials. Obviously I'm clicking on "Remember my password", too. The workstations are all
using Outlook 2010 and on a mix of Windows XP SP3, Windows 7 SP1 and Windows Server 2008 R2 (terminal server with Outlook 2010 installed for remote users). Some users were using Outlook 2010 prior to the migration to Exchange 2013 and some were on Outlook
2007 but upgraded to Outlook 2010. I'm almost to the point of telling the users it's a new "feature" of Exchange 2013. I'm confident that it's not stored passwords or credentials on the workstations, I've removed, deleted, created and
recreated those credentials. I've changed domain passwords and that didn't help either. Any hints, tips or suggestions would be greatly appreciated.

Hi
These settings can be found under your Outlook profile, "More Settings > Connection > Exchange Proxy Settings."
If you have Outlook Anywhere enabled, then you should force all Outlook clients to use HTTP when connecting. Ensure you have "On fast networks, connect using HTTP..." AND "On slow networks, connect using HTTP...". If you
don't, anytime you dock, undock, get a new IP address, refresh your IP address, go to sleep, idle, anything that causes your IP stack wants to renegotiate connective will cause a password prompt to appear, EVERYTIME.
Terence Yu
TechNet Community Support

Why does Outlook keep prompting for password

We have seen our community members ask questions about Outlook keeps prompting for credentials many times. This issue could be caused by numerous reasons. Below is a list of the most common reasons for this problem:
Outlook is configured to prompt you for credentials
Incorrect password cached in credential storage
Required Authentication Settings for outgoing server and incoming server
Outlook Anywhere is not configured to use NTLM Authentication
Corrupt Outlook profile
Slow or unstable network connection
Antivirus programs
Shared calendars
Outlook is configured to prompt you for credentials
If you are using an Exchange account, there is a setting in your Outlook profile to always prompt for logon credentials. To find the setting, please follow:
1. In Outlook 213, go to File tab > Info >
Account Settings > Account Settings…
2. Highlight your Exchange account and click Change button.
3. Click on More Settings button.
4. Select the Security tab.
5. Under the User Identification, make sure the “Always prompt for logon credentials” option is not selected.
If you are using other types of email, please make sure you have ticked the option “Remember password”.
Incorrect credential cached in Credential Manager
Your Windows system stores user credentials on your computer. If the cached credentials are incorrect, you will be prompted for password. This issue usually happens after the password for your domain user account is changed. Before your password changed,
you saved your credentials. The stored credentials are not overwritten when Outlook triggers the authentication prompt even if you enable the Remember my credentials option.
To fix this issue, you need to remove the corrupted credentials, follow these steps:
Click Start, click Control Panel, and then click Credential Manager.
Note If View by is set to Category, click User Accounts first, and then click Credential Manager.
Locate the set of credentials that has Outlook in the name.
Click the name to expand the set of credentials, and then click Remove from Vault.
Repeat step 3 for any additional sets of credentials that have the word Outlook in the name.
Required Authentication Settings for outgoing server and incoming server
Different email provider may need different authentication settings. Please make sure you have set the server settings correctly. You can contact your email provider to gather the information.
In general, we select the “My outgoing server (SMTP) requires authentication” option and the first bullet “Use same settings as my incoming mail server”.
In addition, click on the Advanced tab and check if you have enter the correct Server Port Number and select the correct encrypt type. Below is a screenshot for an IMAP account:
Outlook Anywhere is not configured to use NTLM Authentication
The Outlook Anywhere feature allows you to access your Exchange account remotely from the Internet when you are working outside your organization's firewall.
When using Outlook Anywhere to connect to your Exchange server, we need to choose
the authentication method among Basic Authentication, NTLM Authentication and Negotiate Authentication. The difference among them is the way that the passwords are sent when connecting to the server. With Basic Authentication,
the password is sent in clear text. Using NTLM Authenticationcan significantly reduce the number of password prompts.
To check the authentication setting, please go to File > Account Settings > Account Settings,
select the Exchange account, and then click
Change. In the Change Account wizard, click
More Settings, and then click the Connection tab. Click the Exchange Proxy Settings button and now, you can see the settings under
Proxy authentication settings. Try to change the authentication to
NTLM Authentication and then check the issue again.
Slow or unstable network connection
If your network connection is slow or unstable, Outlook may lose connection to the mail server. When Outlook try to reconnect, it will prompt for the credentials. To verify this, please switch to a stable network environment and then check if this issue
persists.
Corrupt Outlook Profile
Corrupt profile may cause Outlook to no longer remember your password. Please try to create a new mail profile in Control Panel and reconfigure your email account in the new profile to fix the issue. To create a new mail profile, you can refer:
http://support.microsoft.com/kb/829918
Antivirus software
Antivirus software usually integrates into your Outlook and it may cause some conflicts. Try to temporarily turn off your antivirus software to check if the issue will be gone.
Shared Calendar
Shared calendars can impact the user credentials, this issue may also occur if you have shared calendars opened in Outlook. You can try to unselect the shared calendar to check the result. It’s recommended to not open the shared calendar unless you want
to view them.
If you have any comments, welcome to post in the forum. Thank you.
Please click to vote if the post helps you. This can be beneficial to other community members reading the thread.

Nope...
I went through point by point by point, top to bottom, checking and verifying every single item as a possible cause for why my system (Outlook 2013 running on Windows 8.1 and connecting to Exchange 2010) insists on prompting me for my password every single
time I start Outlook. None of the solutions worked, my system still prompts me. I don't even have to supply a password. When the prompt dialog appears, I just cancel it. Within a few seconds, the bottom Outlook status bar changes to
"Need Password" with a key icon to the left. Then I just click on that message and immediately Outlook connects to Exchange.
The freaking software is BROKEN! Period.

Outlook suddenly prompts for password / Exchange 2013

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Hello everyone,I've upgraded an Exchange 2010 to Exchange 2013 but problems started when the Exchange 2010 was removed from the co-existence.The desktop clients suddenly disconnect from the server and prompt for the user credentials, some times if the user provides the credentials right away it fails, but if the user waits about 1 minute, it accepts it. This is happening with outlook 2010, outlook 2013, outlook 2011 for mac and even the new outlook 2016 (provided with office 365) and for some users is more frequent than for others.ActiveSync and OWA works fine, so this is an Outlook Anywhere issue, I've checked all settings that I think could be the reason but no luck so far.Something that I noticed with the TestExchangeConnectivity is that when I do the Outlook Connectivity test if I use manual server settings it works and look like...
This topic first appeared in the Spiceworks Community

Updated iphone and now outlook is prompting for password

My boss is having an issue with his phone. He updated the software for his iphone by plugging it into his office PC and using itunes. Unfortunately, his Outlook software on his PC is prompting him to enter his password every few minutes. The user name that automatically populates in this pop-up prompt is his iCloud user name. When I spoke with an Apple Support employee, he was not helpful at all and told me that this is a Microsoft issue. This never happened prior to him updating his phone. Is there anyone who has had this problem and can help me?

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Outlook keeps prompting for password

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Truly I don't mean to disparage your comment/proposed answer, but in today's day and age one should really never, ever use "Remember my Password" for any context. This means web forms even on trusted sites and/or when the windows subsystem
is called to prompt you for your Windows Password.
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That password is being saved somewhere, or a cookie is being set. The only "safe" way to remember your password is in your head.
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you don't routinely rotate your passwords, and use different ones then you may just as well hand over the keys to your house.
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Outlook 2010 prompts for profile when 3rd party application tries to send mail

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It all depends on the code you are using to initiate Outlook.
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Outlook 2010 prompt for credential when connecting to Exchange 2013 mailbox

I have 4 server Exchange 2010 with DAG and one server Exchange 2013, i've migrated some mailbox to the new 2013 server.
I'm having a problem with some Outlook 2010 that sometimes (not always) requires credential to connect to mailbox in a server Exchange 2013, but only
when Cache mode is enabled.
The client ask for credential and dont connect to mailbox until I change in online mode.
In Online Mode, everything works fine.
I don't have Public Folders, so the check box Download Public Folder is not selected and the authentication mode is "Negotiate".
Thanks in advance.
Elisa

Hi,
As far as I know, by default, shared mail folders not public folders are downloaded in Cached mode in Outlook 2010 and Outlook 2013:
http://support.microsoft.com/kb/982697/en-us
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Outlook prompting for password

User is promting for password in Enviroment Outlook 2010, Ex2013 , Windows7 .
User is accessing outlook through internet and VPN
to work around I have putted google DNS "8.8.8.8"on NIC card
Now user is able to access his outlook without any issue .
But I am sure when user will back to office he will face issue again as he his DNS will point to Google.
Publicly Autodiscover is publish on "RADIUS.HCL.com" as example
Localy "Outlook.HCL.com"
Here is my troubleshooting
So when I do nslookup to RADIUS.HCL.COM
it give wrong response radius.HCL.com.ad.hcl.com
Could you please help on this, I heard somebody its known issue with windows 7 . Any body have idea plz help

Hi,
Before going further, I would like to ask for some information:
Does this issue just occur on one user? If no, please switch to another PC to have a test.
Does Outlook work fine after closing the pop windows?
For troubleshooting, I recommend you to change method of authentication to Negotiate Authentication to have a try:
Open Control Panel, then choose Mail.
Click Email Account and then choose the account.
Click Change and then Click More Settings.
Choose Security tap and change the Logon network security to
Negotiate Authentication.
Unchecked the box that states Always prompt for login credentials.
Here is a thread for reference:
http://social.technet.microsoft.com/Forums/en-US/8137153c-abe1-4c33-aa44-e90cdd761e01/outlook-keeps-prompting-for-password?forum=exchange2010
If this issue persists, please let me know.

Ok I have reset my ID after signing out but when I go to Apps update it asks for a password using my old email address????

I have reset my I D but when I go to update apps it asks for password using my old email address???
How do I overcome this issue???

So how do I update apps that are tied to an old ID ?? I do not remember the old ID as the Apps were downloaded a long time ago

Outlook 2010 - new prompting for password

After installing Office 2010 Beta and working fine for about a month and a half, Outlook started prompting for a password. The machine is on the domain so the Outlook did not prompt before. If you cancel the prompt, everything seems to work fine. This happens on both Windows 7 64-bit and Windows XP. It started happening to all known users on Office 2010. The problem started on January 8, 2010.

I have searched all over for a solution to this crazy problem and some of them highly technical and poorly explained and were for outlook 2003 and 2007. Finally I found this less than 2 minute fix that works. http://www.howtogeek.com/howto/windows-vista/fix-for-outlook-2007-constantly-asking-for-password-on-vista/
This is not my fix but glad to pass along something that actually works. Give Kudos to the "how-to-Geek" and post in other forums to help out all your frustrated friends.
1. Close outlook!
2. go to my computer and then paste this into the address bar. %userprofile%\AppData\Roaming\Microsoft\Protect
3. rename the very long file name S-1-5......etc by appending "-old" to the end of the existing file.
4. now re-open outlook and you may be request for your password. If so enter it and check the remember password box
5. now go back to %userprofile%\AppData\Roaming\Microsoft\Protect by searching in windows explorer or my computer and you should see the renamed long named file
and a brand new long named file.
This should work for you. If not, then do a shut down and reboot a time or two. Then try reopening outlook 2010 and your problem should be fixed. Save
this link: http://www.howtogeek.com/howto/windows-vista/fix-for-outlook-2007-constantly-asking-for-password-on-vista/
because this problem is likely to recur sporadically because of microsofts pushed updates that cause more problems than they solve. Turn off automatic updates so MS cannot keep screwing up your system and snooping.
This fix was explicit for Vista but worked fine for me on Windows 7 64 bit running outlook 2010. Post your results to see if it works for others please. I know everyone is tired of chasing their tails on this problem and even posted fixes have
been so vague that you need to be a software engineer to follow them. If you have other fixes for this I know everyone would appreciate people posting all the steps from the beginning to end and assume that we know nothing at all. Post all the
paths and explanations in simple terms please.
I hope this helps.
Rick Nelson

Outlook 2010 keeps prompting for password

Hi,
We use Exchange 2008 and Outlook 2010. For some reason, Outlook 2010 keeps prompting for password. My use entered the password and checked "Remember Password" box, but next morning when he logged in, he still got the prompt.
I removed the Outlook credential for Outlook listed under Password Credential in Control Panel, but still no help.
Please advise!
Thanks in advance!
Grace

Hi Grace
1. Open Outlook 2010. Click File>Account Settings>Account Settings.
2. Click the E-mail tab, click the Exchange Online mailbox, click Change…
3. Click More Settings…. Click the Security tab, make sure the Always prompt for logon credentials box is unchecked.
Please mark it answer if it helps you solving your problem
Amit Kotha

After Migrating To Exchange 2013 All Outlook 2010 Users Constantly Prompted For Password (BUT OUTLOOK WORKS).

I have two servers. One is Exchange 2010 and the other is Exchange 2013.
Three of our users had mailboxes on Exchange 2013 for the last few weeks with no problems. They used Outlook 2013 and Outlook 2010. After moving the rest of our ~25 users to Exchange 2013 the users with Outlook 2010 began to be prompted for their
password constantly.
They try entering it and it immediately reappears.
The odd thing is it shows connected and they are able to send and receive emails correctly.
I've tested our exchange connectivity using www.testexchangeconnectivity.com and all is well there.
I'm not really sure what's going on.
Any help is appreciated.
Luke
Thanks, Luke Pickard

This can appear if Outlook clients are trying to connect to OAB virtual directory, and don't succeed for some reason. Mailbox and mailflow will work, but password prompt will appear when Outlook tries to contact OAB. Try to investigate in that direction.
Also, perform Outlook Configuration test (right click Outlook icon in task bar while holding CTRL and select Test email autoconfiguration.
Please mark as helpful if you find my contribution useful or as an answer if it does answer your question. That will encourage me - and others - to take time out to help you. Thank you! Damir

Micrsoft Outlook somtimes prompting for username and password

hello All ,
I Have Exchange 2010 sp3 installed two mailbox servers & two HUB & CAS Servers and Outlook sometimes prompting for username and password .
how can fix it .
Thank you

Hi,
Please check the following points:
1. Does the issue happen to your external users or internal users?
2. For all users or some specific users?
If the issue happens to internal users, please configure the authentication in Outlook Security tab with Negotiate Authentication to have a try.
Thanks,
Winnie Liang
TechNet Community Support

Internally installed Outlook 2010 prompts for password using external smtp email as user id

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