Hi All,
I’m new to postfix. I planning to setup a mail server on ubuntu server 20.04 LTS.
I follow this guide: https://www.linuxbabe.com/mail-server/setup-basic-postfix-mail-sever-ubuntu
Everything is working well, I managed to send and receive mail.
But one thing strange is when I send mail to my gmail account, it show the recipient email address with [email protected] instead of [email protected].
Why will this happen? What configuration am I missed and what should I check?
The From: domain name is determined by the myorigin parameter in Postfix.
linuxbabe@mail:~$ postconf myorigin
myorigin = /etc/mailname
linuxbabe@mail:~$ cat /etc/mailname
linuxbabe.com
Thanks for your reply, but the method I tried still same.
Default in /etc/postfix/main.cf
myorigin = /etc/mailname (the result is same)
I tried:
myorigin = mydomain,com (the result still same)
My /etc/mailname already is mydomain,com.
But there is weird if I use echo “testmail” | sendmail anotheruser@gmail,com
The result From: is correct which is ubuntuuser@mydomain,com.
(Sorry i use comma instead of dot because of restriction of new users)
This means your Postfix configuration is correct.
But the address still display as @mail.mydomain.com?
By default, Postfix allows you to use any domain name in the From: address. If you don’t specify a From: address in your email, then Postfix will use @mydomain.com.
The From: address will be displayed as @mail.mydomain.com when you explicitly set it as the From: address.
I means if I use → echo “testmail” | sendmail anotheruser@gmail,com this command, the result is @mydomain.com
But if I use → mail anotheruse@gmail,com this command, the result is @mail.mydomain.com.
so it correct or wrong?
This is correct.
By default, the mail command uses the OS hostname in the FROM: address. You can set the From: address like below.
or you can change the OS hostname to mydomain .com.
sudo hostnamectl set-hostname mydomain .com
In Postfix main.cf file, you should set
myhostname = mail.mydomain .com