3 messages in net.sourceforge.lists.courier-usersRe: [courier-users] Intermittent esmt...
FromSent OnAttachments
Mark BucciarelliSep 21, 2005 5:55 am 
Mark BucciarelliSep 22, 2005 9:38 am 
Sam VarshavchikSep 22, 2005 3:44 pm 
Actions with this message:
Paste this link in email or IM:
Paste this link in email or IM:
Atom feed for this thread
Paste this URL into your reader:
Subject:Re: [courier-users] Intermittent esmtpd failuresActions...
From:Sam Varshavchik (mrs@courier-mta.com)
Date:Sep 22, 2005 3:44:19 pm
List:net.sourceforge.lists.courier-users

Mark Bucciarelli writes:

Then:

- scarcity of tcp connection slots is the only reason why the mail client could not be able to connect to the tcp daemon running esmtdp?

- turning off dnslookups speeds the esmtpd logic making it less likely to hit this scarcity

Correct?

That's plausible. If some DNS server is not responding, it can take several minutes for the DNS query to time out. All the while, the incoming slot is taken up.