It seems that some component (#DavMail?) considers *all* lines starting with “Date:” as message dates, but of course with all the TOFU, there are tons of matching lines—but the rest isn’t conformant. I’ve already fixed those that follow some pattern, but there are tons that are completely off (like “Date: 3 f=C3=A9vrier 2022 =C3=A0 11:23:21 UTC+1”).
Of course, all of this could have been avoided by not migrating to #Microsoft hell and its oh-so-modern authentication.
Since I’ve just gotten another reminder that #OAuth2 will be required to access UNIL’s #MicrosoftExchange server, I decided to give it another try.
This time I let #mbsync sync to a new, empty directory. It ran into the same problem as last time:
IMAP error: unable to parse INTERNALDATE format
Apparently something is different with #davmail that makes mbsync think that lines in the body that start with “Date:” are headers… The solution seems to be to turn off the “CopyArrivalDate” option in the mbsync configuration (which is actually the default value).
The first run is not finished, but so far, things are looking good… Phew!
