[Dovecot] Auto logging-out client

[Timo Sirainen]

On 26.7.2012, at 16.58, Nicolás wrote:

> I'm writing because of an issue I'm having with my Postfix-Dovecot installation. Everything's working fine but when an IMAP client is idle for some time, Dovecot automatically logs it out.
> 
> Jul 26 14:01:16 mail dovecot: imap(nicolas at devels.es): Disconnected: Logged out bytes=1271/7439

IMAP client logs out. Dovecot doesn't automatically do anything. There's no way (even theoretically) to prevent this from Dovecot's side.

> This entails errors when trying to send e-mails after this auto logout, such as:
> 
> host devels.es[91.215.158.237] said:
>    550-Please turn on SMTP Authentication in your mail client, or login to the
>    550-IMAP/POP3 server before sending your message.

Your server supports pop3/imap-before-smtp kludge. I'd remove that entirely and require SMTP AUTH always.