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My @example.com email is hosted with Google Apps. I am able to send & receive email to all 4 accounts I have created for @example.com. I also own www.example.com.

The issue is not being able to send emails to ones ending with the same domain, @example.com, persists. I have switched settings in contact forms to point to my personal address, one NOT ending in @example.com, and the form sends.

I go into the terminal and use # echo SERVER MAIL TEST | mail me@personal.com and the email sends. However, when using the same command and sending to webmaster@example.com, the issue occurs.

I have logs and I have a sneaking suspicion I messed up the main.cf, here are pastebins for the log and main.cf

http://pastebin.com/bysqpY4E

http://pastebin.com/x2GK9pPZ

Any ideas? Am I even explaining myself correctly?

Filipe Figueiredo
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1 Answers1

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You really got configured the MX dns entries of "example.com" domain at google apps, as you can see:

tampax ~ # dig MX example.com ;; ANSWER SECTION: elemetx.com. 1799 IN MX 10 alt4.aspmx.l.. elemetx.com. 1799 IN MX 1 aspmx.l.. elemetx.com. 1799 IN MX 10 alt3.aspmx.l.. elemetx.com. 1799 IN MX 5 alt2.aspmx.l... elemetx.com. 1799 IN MX 5 alt1.aspmx.l...

The fact is you got the same domain name configured in the postfix mail server, so when postfix tries to deliver the email to this domain (example.com), it does LOCAL delivery (the e-mail does not go outside your postfix server EVER as it thinks its the owner of the email server of that domain), as you can see:

Oct 2 10:00:06 elemetx postfix/local[30374]: 48FDB162B19: to=<webmaster@example.com>, HERE ->> **relay=local** <<- HERE, delay=0.03, delays=0.02/0.01/0/0.01, dsn=5.1.1, status=bounced (unknown user: "webmaster")

Also, as far as the account "webmaster@example.com" is not configured out in your /etc/aliases, the e-mail is returned to the sender (in this case root@).

(local accounts are defined in this postfix config line:)

alias_database = hash:/etc/aliases

Finally, what is causing the problem is:

mydestination = example.com

That line makes postfix to 'delivery locally' any e-mail to @elemetx.com, as you can see in the official postfix documentation:

"The mydestination parameter specifies what domains this machine will deliver locally, instead of forwarding to another machine".

Remove that line or change it for (for example):

mydestination = localhost

Restart postfix afterwards:

/etc/init.d/postfix restart

Cheers,

Abdón Romero
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