linux邮件使用错误的域发送电子邮件

Question

I am using linux "mail" client. When I try to send an email echo "test" | mail -s "testing" myemail@personal.com I receive a 550 error bounce back because the domain is invalid.

On the server there are 2 domains. One is public the other is strictly internal. How do I force only the mail client to use the public domain?

Here is the failure message.

Final-Recipient: RFC822; myemail@personal.com
Action: failed
Status: 5.1.8
Diagnostic-Code: SMTP; 550 5.1.8 Invalid domain: server_hostname.internal.domainname
Last-Attempt-Date: Wed, 12 Feb 2014 12:22:06 -0500

Answer 1

The fix ended up by modifying the submit.cf and sendmail.cf in /etc/mail/

# my official domain name
# ... define this only if sendmail cannot automatically determine your domain
Djdomain_name

You need to include the Dj which will be followed by the hostname.

Thank you for everyones help.