MicrosoftMirela_Buru This is really a quite helpful post, but unfortunately most errors I am currently dealing with are those with "fail to find the recipient ExchangeGUID of a specific ComponentShared mailbox".
Is there any chance this will be automatically fixed at some time in the future? It is quite annoying to open a support case every time.
Luckily I am now always contacting the same support engineer, so he already knows what do to and the issue is fixed in 24-48 hours.
PS: Maybe you can also explain in more detail why this is happening and maybe "how to avoid" such cases. I have the feeling it is related to TEAMS when it is enabled for a user, even before there is a mailbox or a mail-user object for that same user in Exchange Online. Maybe I am wrong, but this would explain it for some of our cases we had in the past at different customers.
