I can't seem to get sendmail working...

trist007 · 05-24-2009, 12:39 PM

I have BT3 Slackware 12.0 installed. I have edited the /etc/mail/sendmail.cf and changed this line
# SMTP daemon options
O DaemonPortOptions=Port=smtp,Addr=192.168.8.143, Name=MTA

I want to send a message to user amigo085 at 192.168.9.85. I can ping 192.168.9.85 and the ports 25 and 110 on 192.168.9.85 are open and each have the appropriate services running behind them. I have sendmail running on 192.168.8.143, not 0.0.0.0, so my port 25 is not open to the public but is open to 192.168.9.85. There is a valid route between the two ips. So I access my smtp server by

nc -v 192.168.8.143 25 and do the following
helo 192.168.8.143
mail from:<root@192.168.8.143>
rcpt to:<amigo085@192.168.9.85>
data
testing 1 2 3
.

Then I check pop3 server at 192.168.9.85 and it never receives the message. I check sendmail -bp on my server and I get operating system error mailer-daemon. Is there a setting in my /etc/mail/sendmail.cf that I have to change to send the message to the pop3 server on 192.168.9.85? Also, I have edited my /etc/hosts and put a domain name like sweet.com for 192.168.9.85 and have tried repeating the same process above but instead of putting
rcpt to:<amigo085@192.168.9.85> I put rcpt to:<amigo085@sweet.com> but there's no change.

What am I doing wrong?

dive · 05-25-2009, 06:05 PM

Can you send a message to yourself or a user on the same box as sendmail is running on? Might help to see if sendmail is doing anything at all. Or perhaps you can send externally?

Also (no idea if this makes any difference) I have never tested sendmail with the addresses between < >.

mRgOBLIN · 05-25-2009, 06:24 PM

put square brackets around the ip like this amigo085@[192.168.9.85]

See if that helps.

Also check /var/log/maillog on both boxes to see what's going on.

trist007 · 05-25-2009, 10:07 PM

The brackets around the ip solved the problem, awesome. However, I can't sendmail out to the public like hotmail. I tried changing the line in /etc/mail/sendmail.cf

O DaemonPortOptions=Port=smtp,Addr=192.168.8.143, Name=MTA

to

O DaemonPortOptions=Port=smtp,Addr=0.0.0.0, Name=MTA so it could be public.

I can still send mail to 192.168.9.85, however, if i try sending mail to my hotmail email account it won't work. I've tried both rcpt to:xxx@hotmail.com and rcpt to:xxx@[hotmail.com]. Here are some of the logs for this error

Code:

May 25 22:16:39 (none) sm-mta[25004]: n4PMEqES024891: to=XXXX@hotmail.com, ctladdr=root@[192.168.8.143] (0/0), delay=00:00:05, xdelay=00:00:00, mailer=esmtp, pri=120011, relay=mx4.hotmail.com. [65.55.92.152], dsn=5.0.0, stat=Service unavailable
May 25 22:16:39 (none) sm-mta[25004]: n4PMEqES024891: n4PMGdEQ025004: DSN: Service unavailable
May 25 22:16:39 (none) sm-mta[25005]: n4PMGdEQ025004: Warning: program /usr/bin/procmail unsafe: No such file or directory
May 25 22:16:39 (none) sm-mta[25005]: n4PMGdEQ025004: SYSERR(root): Cannot exec /usr/bin/procmail: No such file or directory
May 25 22:16:39 (none) sm-mta[25004]: n4PMGdEQ025004: to=root@[192.168.8.143], delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31352, dsn=4.0.0, stat=Operating system error

Or is it because hotmail doesn't take mail by smtp?

trist007 · 09-04-2009, 11:36 PM

trist007 · 09-05-2009, 12:05 AM

I found that some web based email applications don't accept emails from dynamic ip's. It's their policy. Anyhow, I finally did get it working.