Postfix Sluggish

[Alexander Dalloz]

Am Fr, den 04.11.2005 schrieb Ki Song um 18:14:

> > Test you DNS. Often a slow resolver causes slow mail processing.
> 
> I tested sending messages by using the actual ip address as the smtp server
> (so that i can bypass the dns server), and still, the sluggish performance.
> To clarify, when I say sluggish, I mean that sending a message via smtp and
> receiving messages via pop, takes about 10 seconds, when as recently as 2
> days ago, it was sending in less than 1 second.

DNS is much more involved than just for the SMTP server name and IP you
are calling from your client! I did mean DNS more generally: so DNS
comes to play when the target MX host is to be found for the message
recipient. For incoming mail other DNS queries are processed.

A 10 seconds delay can indicate either a non working or blocked identd
request or a non working reverse DNS check.

Alexander


-- 
Alexander Dalloz | Enger, Germany | GPG http://pgp.mit.edu 0xB366A773
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