sendmail won't send to it's own domain

[coldfission]

I have worked with two linux servers now that will not send email to itself.

When we test programs, we like to send email to ourselves to get test content, but it always fails.

for example: i send email with sendmail from server: example.com to email address: test@example.com.

No email is ever received when i try

Any help with this?

[trq]

Is your DNS resolving properly? ie; Can you ping example.com and get 127.0.0.1 (or at least the LAN ip)

[coldfission]

pinging example.com from example.com gives my Internet IP. not my local IP or 127.0.0.1

is that a good thing?

[ghulamyaseen]

i think it does not matter that it is your localloop IP. what matters is logs....can you please send your logs?

 

tail -f /var/log/maillog

 

Ghulam Yaseen

http://friendspak.com

[cpace1983]

Add the following line to /etc/hosts:

 

127.0.0.1    example.com

 

Silly question, but can you verify that sendmail can accept connections on the loopback interface?:

 

telnet example.com 25

 

Should get you a connection, where you could start a manual SMTP conversation.

 

Barring that, check your log files for any funny business:

 

cat /var/log/maillog|grep "example.com"