27 May
2019
27 May
'19
11:39 p.m.
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