Roundcubemail: Empty startup greeting (localhost:143)

Bug
1

@giacomo This afternoon I worked with rspamd and I build some rpms from master, so my rpm was uptodate.

After the installation on two servers, I cannot anymore login with roundcubemail on two servers (one VM and my server), either for user@domain.com or for root

you can find in log this

[20-Apr-2020 21:45:10 +0200]: <ai2p4rav> IMAP Error: Login failed for user@domain.com from 86.195.249.178. Empty startup greeting (localhost:143) in /usr/share/roundcubemail/program/lib/Roundcube/rcube_imap.php on line 197 (POST /webmail/?_task=login?_task=login&_action=login)

once I downgraded the rpm the login is good now

I saw that we have some commit merged (but not released) : https://github.com/NethServer/nethserver-mail/commits/master

2

As you can see, there are many issues on testing for the mail server: https://github.com/NethServer/dev/issues

Which one is affecting roundcubemail? What is the error inside the IMAP server?
Feel free to report your detailed findings inside the tracker under the affected issue :wink:

3

Like I wrote, above is the error I had in roundcubemail log, what is weird is that the remote login was not wrong with 993, but only the localhost on 143.

4

/var/log/maillog

Apr 21 09:39:42 ns7loc5 dovecot: config: Error: Conflict in setting mail_max_userip_connections found from filter at /etc/dovecot/dovecot.conf:33

/var/log/roundcubemail/errors.log

[21-Apr-2020 09:39:42 +0200]: <rsjs2tnm> IMAP Error: Login failed for stephane@nethservertest.org from 192.168.56.1. Empty startup greeting (localhost:143) in /usr/share/roundcubemail/program/lib/Roundcube/rcube_imap.php on line 197 (POST /webmail/?_task=login?_task=login&_action=login)
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