Hey @ESN
Microsoft, in their infinite wisdom, has now permanently blocked password authentication for IMAP. There was a small time where you could postpone it, but I now believe "legacy auth" is blocked entirely.
We plan to add support for oauth at some point, but there is no set date yet. We have recently swapped the module we use for fetching mail so this is at least now a possibility (the standard mail module had no oauth support at all).
I know someone was using an oauth proxy to make this work with 365 until we add support, but have no further info.
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