Forum Discussion
New Shared Mailbox - getting error when sending emails
Hi all, wondering whether you may help me to understand the behavior that I experience recently with new shared mailbox in O365 created recently... I have never had problem to create shared m...
Are you trying to send to external users? Which server is generating the NDR, Exchange Online or the recipient's? It doesn't look like it's Exchange Online, and the code itself suggests a mail flow issue, not something specific to the shared mailbox or permissions on it.
What does a message trace show?
What does a message trace show?
Hi Vasil,
I will create a testing shared mailbox to play with it... Email is sent to external recipient, yes. I do not believe it is mail flow or similar as that would affect all maliboxes.... however... as I mentioned... all mailboxes (even shared ones) are working fine... Except the shared ones that were creating recetly.
I've found a topic a guy described the same situation ... and looks like with MS tech support they got it fixed by removing permissions / re-adding permission / disabling automap (all these via PowerShell) and manually adding shared mailbox in Outlook....
So I will try that as well... However, still wondering why this is happening 😕
- Just to let you know..
Eventually, I've found out that the user who was testing shared mailbox made a small "typo" in the shared mailbox email address which causes this issue for him.... 😕
So all seems to be fine....