On Mon, Oct 17, 2011 at 07:17:18PM -0700, Edward Morbius wrote:
> Several of our peer mail systems (outbound) seem to take a while responding
> to initial SMTP connections.
>
> Is there any particularly dread pitfall to watch out for in bumping these
> values up? 20s for connection, 40s for HELO is where we're at presently.
These values are well below Postfix built-in defaults.
$ postconf -d | grep '^smtp_' | grep '_timeout ='
smtp_connect_timeout = 30s
smtp_data_done_timeout = 600s
smtp_data_init_timeout = 120s
smtp_data_xfer_timeout = 180s
smtp_helo_timeout = 300s
smtp_mail_timeout = 300s
smtp_quit_timeout = 300s
smtp_rcpt_timeout = 300s
smtp_rset_timeout = 20s
smtp_starttls_timeout = 300s
smtp_tls_session_cache_timeout = 3600s
smtp_xforward_timeout = 300s
You could probably raise your timelimits.
However, if your outbound server is regularly not keeping up with
the lower timeouts you quote, you really need to fix that.
--
Viktor.
