Re: Help Needed: My RHEL5 box suddenly stopped accepting e-mails

Hi Bohdan,

Thanks for your reply.
Please see below for my comments.


On Sat, May 7, 2011 at 1:27 PM, Bohdan Sydor <bohdan@xxxxxxxxxx> wrote:

On 05/07/2011 10:09 PM, Mun wrote:

I get "connection lost" or "Connection timed out"; depending on the
computer
I use to run telnet.
The "connection lost" is what my Windows XP box returned; and the
"Connection timed out" is what
another Linux box returned.

Please log in as root and run the following commands:

service sendmail status


sendmail (pid 18176) is running...



chckconfig --list sendmail


sendmail 0:off 1:off 2:on 3:on 4:on 5:on 6:off


netstat -ntlp | grep :25


tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 18176/sendmail: acc



iptables-save

grep -v '^#' /etc/hosts.{allow,deny}


/etc/hosts.deny:



We'll be able to see which process is listening on smtp port and if it's
not being blocked by either the packet filter, nor tcp_wrappers.


Does everything above look okay?

Regards,

--
Mun




--
regards

Bohdan Sydor
www.sydor.net

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