Hi,
[aki.tuomi@dovecot.fi] - [29.05.2016 08:58]
Also make sure you are not facing simple firewall or interconnectivity issue.
The server is running well all the time, except for these "hickups". I will also try Alexander's hint.
Also usually it helps if you provide outputs from doveconf -n doveadm log errors
Here is my doveconf -n (doveadm log shows only old errors, nothing in relation to the timeouts):
# 2.2.9: /etc/dovecot/dovecot.conf # OS: Linux 3.13.0-68-generic x86_64 Ubuntu 14.04.4 LTS auth_mechanisms = plain login auth_username_format = %n debug_log_path = /var/log/dovecot.log mail_location = maildir:~/Maildir managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap pop3 lmtp sieve pop3 service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } ssl_cert =
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