I migrated to Yunohost 3.0 succesfully, except SMTP is no longer working. Incoming mail works fine.
I’m not sure where to look.
/var/log/mail.err
Jun 21 07:15:11 YunoHost dovecot: lda(me@domain.tld): Error: sieve: msgid=<5b2b507b.1c69fb81.178f3.32ab@mx.google.com>: failed to store into mailbox 'Junk': Mailbox doesn't exist: Junk
Jun 21 07:15:11 YunoHost dovecot: lda(me@domain.tld): Error: sieve: Execution of script /etc/dovecot/global_script/rspamd.sieve failed, but implicit keep was successful
/var/log/mail.warn
...
Jun 22 11:54:31 YunoHost postfix/smtpd[4889]: warning: hostname zg-0517a-133.stretchoid.com does not resolve to address 107.170.228.70: Name or service not known
Jun 22 11:54:31 YunoHost postfix/smtpd[4889]: warning: TLS library problem: error:1408F10B:SSL routines:ssl3_get_record:wrong version number:../ssl/record/ssl3_record.c:210: