On Thu, 2018-03-29 at 23:48 -0700, Samuel Sieb wrote:
I expect that Evolution is not using the same IMAP requests as
Thunderbird did. Thunderbird was getting the server to parse the email
somewhat and give it the details. Evolution may just be asking the
server to send it the whole thing. I don't know if Evolution has some
way to log the protocol like Thunderbird, but it's not necessary.
Install "socat" and run the following command as root in a terminal:
socat -v tcp-l:143 openssl:your.mail.server:993
Evolution does not download the whole message unless you ask for it
(e.g. by having a preview pane open). To debug IMAP:
CAMEL_DEBUG=imapx:io evolution >& logfile
For more on Evolution debugging, see: https://wiki.gnome.org/Apps/Evolution/Debugging
Note that Evo has various preferences which can affect IMAP
connections. Look in Edit->Preferences-><account>->Receiving Options.