sendmail problem is pissing me off

ssrikant · 04-28-2003, 04:13 PM

Hi have installed sendmail and postfix in my linux box and am actually trying to run a mail server on my linux box well both telnet localhost 110 and telnet xxx.com 110 seem to work fine with my machine ...but the problem comes when i try telnet localhost 25 or telnet xxx.com 25 each giving me mesg connection to remote terminal refused.

I would like to also ask how to find out the sendmail deamon is initialted and running in backgroup

any insight is appreciated
-srikant

david_ross · 04-28-2003, 04:21 PM

Quote:

Originally posted by ssrikant

I would like to also ask how to find out the sendmail deamon is initialted and running in backgroup

-srikant

Sorry - this doesn't make sense to me. Are you asking if the process is running? then "ps -ef | grep sendmail"

As for "telnet host 25" - are you doing this from the server itself? and using the loopback address? It could be a firewall issue.

ssrikant · 04-28-2003, 04:45 PM

how to disable the firewall it were iptables stop then i guess i have already done that

-srikant

david_ross · 04-28-2003, 04:46 PM

That would do it - did you try telneting to the loopback from the server?

ssrikant · 04-28-2003, 05:56 PM

i can telnet to the server frm remote and local either wayz using telnet server

but if use

telnet server 25 both remote and local it sayz
telnet:unable to connect ot remote host:connection refused

-srikant

markus1982 · 04-28-2003, 05:58 PM

You need to bind it to the external ip address not the loopback one. check sendmail.mc/cf daemon_options or something named like that!

ssrikant · 04-28-2003, 06:00 PM

i am afraid i dont understand you
sry

-srikant

ssrikant · 04-28-2003, 06:03 PM

also when i run nmap on the server the port 25 does not as open

jeremy · 04-28-2003, 06:16 PM

http://www.linuxquestions.org/questi...882#post180882 should help

--jeremy

markus1982 · 04-28-2003, 06:19 PM

check /etc/mail/sendmail.mc and replace XXX.XXX.XXX.XXX with your external IP.

...
DAEMON_OPTIONS(`Port=smtp,Addr=XXX.XXX.XXX.XXX, Name=MTA')
...

then do (pathes might need to be adjusted)

m4 /etc/mail/sendmail.mc > /etc/sendmail.cf
/etc/init.d/sendmail restart

and it should work.

markus1982 · 04-28-2003, 06:20 PM

Quote:

Originally posted by jeremy
http://www.linuxquestions.org/questi...882#post180882 should help

--jeremy

hey that's not fair I was just posting :-p :-)

ssrikant · 04-28-2003, 07:18 PM

I am replacing my ipaddress with the external ip address but it sayz that i dont have permission denied to make any changes
-srikant

shottz · 05-28-2003, 09:39 AM

As long as your dns is working...and assuming you are using sendmail version 8.11.x or greater...
edit the sendmail.cf file and look for a line like:
O DaemonPortOptions=Port=smtp,Addr=127.0.0.1, Name=MTA

leave this and add

O DaemonPortOptions=Port=smtp,Addr=ACTUAL-IP-ADDRESS, Name=MTA

restart sendmail and you should be able to connect.

also, update your sendmail version...