On 04/11/2010 04:33 AM, Istvan Köpe wrote:
Hello,
Yesterday I installed a fresh Qmail Toaster box on Centos 5.4
according to wiki.
The box works fine, but the SMTP is very slow. You have to wait about
30sec to send a blank message, no matter if you connect from LAN or
from the internet.
I have the same response if I telnet on port 25. Even if I telnet
127.0.0.1 25
I setup bind as caching-nameserver, no change. I tried with djbdns, no
change.
The server is behind an ADSL router with ports 22, 25 and 80 forwarded.
I also tried putting the server in DMZ, no change.
I out of ideas. I don't know where to look for the problem.
Please give me a clue.
Slow connects are usually do due to DNS lookups. You may have a RBL that
is taking a long time to respond (or is timing out) that is causing the
delay.
If this started after installing Spamdyke, remove it until you can
determine what the issue actually is.
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