Hello,
My work uses Office 365 for email, but I much prefer Thunderbird to Outlook, so I connect via IMAP. I am finding that dozens of folders I have deleted reappear in… (மேலும் படிக்க)
Hello,
My work uses Office 365 for email, but I much prefer Thunderbird to Outlook, so I connect via IMAP. I am finding that dozens of folders I have deleted reappear in the Thunderbird folder list as italicized, and then when trash is emptied they persist in Deleted Items italicized as well.
I also use Google Workspace in Thunderbird and don't see this issue. I have set up new profiles from scratch on multiple machines on Windows, macOS, and Linux. The problem always returns.
My sense is that the italics represent old subscriptions to folders that no longer exist. The IMAP subscriptions are enumerated somewhere that is inaccurate and/or corrupt so that unsubscribing or deleting is ineffective (i.e. Thunderbird lists the folders that O 365 says are subscribed to, but O 365 can't delete folders that don't exist).
I have been in this job 29 years, which is to say I have a lot of mail, and a lot of folders, and a lot of folders that have been deleted when names of departments changed over that time or people retired. I am willing to accept that Microsoft's IMAP breaks when you have more than X folders or Y messages.
I started off asking our O 365 admins "I don't know how to do this, but is there a JSON or XML or something that lists IMAP subscriptions that can be deleted so I can start fresh?" They didn't know, so now we have taken up the issue with Microsoft. They insist the folders are not in the mail store, which I don't dispute. They have also suggested it's a Thunderbird issue. This makes no sense, since how Thunderbird wouldn't know when I set up a new profile, for example, that I once had a folder called Vendors with a sub-folder called Polycom, unless O 365 listed it.
I am ready to save all the email and ask the O 365 admins to create a new account for me, assuming that I had too many folders and broke my mail store in way that nobody seems to know how to fix. Microsoft suggested I post here first.
Is anybody here familiar enough with O 365's IMAP implementation to know how to reset a mail store's IMAP subscriptions?