If you have mail domain "example.com" hosted on your server, all emails sent to "@example.com" will be delivered locally. So i suggest you add two fake mail domains for testing.
Can this type of sending be skipped by using a relay or a similar way?
What I want to test is to send a mail with the default user postmaster@mydomain.com to one of the accounts that already exists (contracted with an external enterprise ) with the same domain, for example gistek@mydomain.com
When I try to do it the program says me that the user gistek@mydomain.com does not exists (because I have not created it) and if I create it the mail is sent locally.
Gistek-s wrote:But the main problem (send mail to outside) is still ocurring.
When I send a mail to outside I receive this answer:
"<maildir@maildomain.com>: host mail.domain.es[194.30.0.71] said: 550 5.1.8
<myiredmailuser@myiredmaildomain.com>: Sender address rejected: Domain not found (in
reply to RCPT TO command)"Seems Postfix cannot find recipient domain (maildomain.com in your case).
The problem is that the destination domain does not recognize the fake domain I have created to test so it does not accept the mail. Is there any way to solve this error (ussing a relay or similar)?