Hi, is anyone using more than one account on the same SmarterMail server via MAPI, in the same Outlook instance and profile, at the same time, with the Microsoft 365 version of Outlook?
I am having trouble with this where everything seems to work normally for a while (for about a day or so, even across Outlook restarts), but then suddenly Outlook will prompt for a password for one of the accounts, but with the username of one of the other accounts pre-filled. If I change it to the correct username and fill in the correct password, and check the box to remember the credentials, everything again works for a while. But then I get the same prompt again except for one of the other accounts, again with the username of a different account pre-filled. And so on in an infinite loop.
I'm not sure but my assumption is only one MAPI username and password combination for the whole server is actually being stored on this computer, and is getting overwritten every time I fill in the password prompt, causing the other MAPI accounts to lose their saved credentials and eventually the authentication token expires causing the prompt again.
I tried redoing all of the MAPI accounts for this user using these instructions from the knowledge base, but it didn't resolve the problem.
I also did Resync User Protocols for all this user's accounts, but that also didn't resolve the problem.
I have another user who is using the Office 2019 version of Outlook, also with multiple accounts (on the same SmarterMail server as each other, which is also the same SmarterMail server as the other user above) via MAPI in the same Outook profile, and this problem doesn't occur for this user. I don't know if the different version of Outlook is the key or if thers's something else going on with the first user.
Has anyone else been able to use multiple accounts via MAPI at the same time in Microsoft 365 Outlook?
I am using SmarterMail Enterprise build 8664, but I recently upgraded from 8451 and had the same issue then. Checking for Microsoft 365 updates on the first user says it's already the latest version.