Like JC, let's look at DNS.
What's in your /etc/resolv.conf?
What happens when you
# dig some.externaldomain.com?
Ronnie Tartar wrote:
I'm not using any with Qmail, my /var/qmail/control/blacklists file is empty.
I was using them with Spamdyke.
-----Original Message-----
From: news [mailto:n...@ger.gmane.org] On Behalf Of Eric Shubert
Sent: Monday, July 13, 2009 12:25 PM
To: qmailtoaster-list@qmailtoaster.com
Subject: Re: [qmailtoaster] Strange problem : smtp become really slow
Very possibly the same problem. What RBLs are you using?
Ronnie Tartar wrote:
This may be my problem also. My spamdyke filter started timing out bigtime but
when I removed the spamdyke, it still takes the smtp server about 30 seconds to
answer when I telnet to port 25.
Regards
-----Original Message-----
From: an...@libero.it [mailto:an...@libero.it]
Sent: Monday, July 13, 2009 12:06 PM
To: qmailtoaster-list@qmailtoaster.com
Subject: [qmailtoaster] Strange problem : smtp become really slow
Hi,
this morning a strange problem start on my qmailtoaster server, the SMTP
service become really slow.
Al the other service (pop3, imap, submission port)
are still ok.
I've restarted a couple of times the server and I tried also to
disable rbls, spf, spamdike, clamav and spamassassin but nothing changed.
There
is nothing strange in the logs, and I haven't done any update or modification
on the server.
If i try to connect to the port 25 with a telnet session the
connectiion is established quickly but when I type helo no response comes from
server, only a couple of minutes later it will respond to the command ....
From
my test seems that the problem deal with CHKUSER wich is really slow (from the
smtp/current log I see that there is a big delay between the accepted
connection and the chkuser response) but I don't know how to investigate
further.
Fabio
--
-Eric 'shubes'
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