On Thu, Apr 13, 2023 at 01:59:56PM +0200, Sébastien Hinderer wrote:
Am I correct in trusting the sysadmin that IMAP support is indeed enabled for this account?
IMAP does appear to be enabled, since Mutt is able to connect to the IMAP port and try to authenticate.
If the problem would be an incorrect password, would that be written explicitly in the debug output, or would I get this error message and no more details?
No, Mutt has no way to tell if the password is correct or not. Mutt knows as much as you see in the debug output: the server replied with "NO AUTHENTICATE failed.", without giving an explicit reason.
Note you can check the authentication value sent in the debug log by base64 decoding it. For PLAIN it should be $imap_user + '\0' + $imap_login + '\0' + $imap_pass. (The default of value of $imap_login is $imap_user - so there is no need to set it separately unless there is a need for them to be different).
It could be that PLAIN is advertised, but not actually working. That would be something to ask the admin about too.
-- Kevin J. McCarthy GPG Fingerprint: 8975 A9B3 3AA3 7910 385C 5308 ADEF 7684 8031 6BDA
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