This is the log when I try to connect using mailspring on my local device:
———-IMAP———-
connect <mailcore::IMAPSession:001BF800>
* OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ UTF8=ACCEPT AUTH=PLAIN AUTH=LOGIN AUTH=SYNOAUTH] Dovecot ready.
ssl connect SERVER_URL 993 2
OpenSSL version: OpenSSL 1.1.0f 25 May 2017
connect ok
login
1 LOGIN “EMAIL_ADDRESS” *********
1 NO [AUTHENTICATIONFAILED] Authentication failed.
I am looking at the logs on the mailcow UI, there is no mention of the failed auth