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Some customers report that Outlook (2016) keep asking accounts passwords (Outlook is connected via MAPI to 2 accounts)
Problem reported by Gabriele Maoret - SERSIS - 10/14/2021 at 6:01 AM
Submitted
Some customers report that Outlook (2016) keep asking accounts passwords (Outlook is connected via MAPI to 2 accounts).

Smartermail is the latest version.

Theres's anyone that has this issue and have a solution?

4 Replies

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Kyle Kerst Replied
Employee Post
Hi Gabriele! Something I have seen cause recurring password prompts is missing autodiscover components, or problematic autodiscover components. When using MAPI/EAS/EWS, Outlook relies heavily on autodiscover, and so you'll want to verify the following criteria are met from the client PC:

https://mail.customer-domain.com should be reachable from a browser without security errors. 

https://autodiscover.customer-domain.com should be reachable from a browser without security errors.

SRV record should be reachable in DNS and should reference mail.customer-domain.com on port 443

Can you confirm these criteria are met for both usernames? Thanks Gabriele!
Kyle Kerst
Technical Support Specialist
SmarterTools Inc.
(877) 357-6278
www.smartertools.com
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Gabriele Maoret - SERSIS Replied
yes these are OK.

I have to add that, in the same domain, the majority of users works flawlessy, only few ones have this issue (maybe 1 or 2 users per domain).

But there are users with this issue in differnet domains (only 3 domains right now)...

All other domains are OK...

Maybe is an Outlook issue?
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Kyle Kerst Replied
Employee Post
Thanks Gabriele, I appreciate you confirming this. In that case I wonder if this might be an issue involving one of a couple items: 

1. Local DNS servers in use on these particular client machines are returning invalid results during the autodiscover routine.
2. Client PC has cached/saved credentials stored in Windows. You can try following this guide completely to resolve that: https://portal.smartertools.com/kb/a3487/how-to-thoroughly-replace-your-mapi-account.aspx
3. Outlook installation may be problematic. You can try a /scanpst on the OST file in question, and worst case, can try a repair or reinstallation of Outlook there. 

I hope this helps! Have a great day Gabriele!
Kyle Kerst
Technical Support Specialist
SmarterTools Inc.
(877) 357-6278
www.smartertools.com
0
Michael Replied
Verrrrry interesting. After update to Build 7945 (Oct 2, 2021) we have had a handful of Outlook 20216 MAPI connected users have issues. One kept being prompted for password. The other did not get password prompt, but some email folders AND calendar did not sync. In both cases we removed the account from Outlook, restarted and re-added. Interesting to see this other report. We figured it was just some oddity locally. Guess not.

Both users had two accounts setup. One was a MAPI account (the one not syncing) and the other account was an IMAP group email box. Both accounts on the same server.

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