Hello I am experiencing some strange issue with the dovecot, the web round cube works fine but when I try to connect with an iPhone over IMAP IMAPs it tells me that the account is disabled.

May 25 14:30:32 imap-login: Info: Aborted login (no auth attempts in 0 secs): user=<>, rip=... ...

It's probably the iPhone mail app trying to be clever and auto-configuring the settings for IMAP (and getting it wrong). To stop this behaviour, hardwire the iPhone IMAP parameters, then disable "Automatic manage connection". If you use SSL/TLS, this will also secure you from plaintext MITM attacks.

Other oddities I've seen from Apple mail readers:

1) If you don't disable "Automatic manage connection", it will
	also hunt around for outgoing mail settings.

2) Once in a while, it initiates an idle authenticated SMTP session
	(i.e. authenticates, but does nothing).

3) Roofs your user IMAP connection limit when the client does
	global mail searches.

Joseph Tam jtam.home@gmail.com