[Dovecot] avoid log message when using nagios check

[Timo Sirainen]

On 10.7.2013, at 12.44, lluis <lluis at ingent.net> wrote:

> there is something I can send to silently exit?

No. Attackers would otherwise use that. Although I suppose something could be added if the source IP is from login_trusted_networks.. Wonder what would be a good way. I guess the same commands that are used to pass IPs through proxies, so maybe:

IMAP:

a ID ("x-silent-logout" "y")
b LOGOUT

POP3:

XCLIENT SILENT-LOGOUT
QUIT

But would those work well enough everywhere? Should it be a LOGOUT/QUIT parameter instead?.. Such parameters could be troublesome though.