I installed postfix with webmin on Ubuntu14 LTS. For the reverse DNS, the name of the droplet is mydomain.com.
The result of postconf smtp_helo_name is:
root@Ubuntu-14LTS-NY1:~# postconf smtp_helo_name postconf: warning: /etc/postfix/master.cf: undefined parameter: mua_sender_restrictions postconf: warning: /etc/postfix/master.cf: undefined parameter: mua_client_restrictions postconf: warning: /etc/postfix/master.cf: undefined parameter: mua_helo_restrictions smtp_helo_name = $myhostname
Why smtp_helo_name reply $hotname, that looks strange.
And I have two warnings with http://mxtoolbox.com
In main.cf, I have:
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no myorigin = /etc/mailname mydestination = mydomain.com, localhost
In /etc/mailname there is mydomain.com
What can I do to fix these warnings?
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.
Click below to sign up and get $200 of credit to try our products over 60 days!