Quote:
Originally Posted by BritTim
It is far better to use imap.fastmail.com and smtp.fastmail.com rather than the legacy mail.messagingengine.com. Also, verify that you are using an App password, not your main account password.
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The SSL negotiation happens before transferring the password.
Got a reply to my ticket. Based on the response ("yes we changed something") I assume that they require TLS 1.3 now or something similar that my old version of Aquamail does not support. Upgrading is not an option, the new owners made the free app horrific and there were some shenanigans with the paid one.
I'll probably look into K-9 or FairEmail.