NethServer Version: 7.9.2009 Module: Postfix I’ve tried to set the SMTP HELO message to my domain, but none of the settings appear to be working when being checked by MX Toolbox: Reverse DNS from IP Address returns: mail.domain.net Checked in Cockpit Relay settings: Custom HELO: mail.domain.…

@BearTM Hi Rob And welcome to the Nethserver community! Additionally, this seems to be needed in /etc/postfix/main.cf: myhostname = example.com I have this in my notes: ———————————————————— Postfix ———————————————————— Custom Template addition for Postfix: mkdir -p /etc/e-smith/templates-c…

SMTP HELO can not be changed / specified

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Andy_Wismer (André Wismer) September 30, 2022, 7:03pm 8

@BearTM

See this:

Helps the next dude…

My 2 cents
Andy

I also use mxtoolbox.com (among others…), mail-tester.com is another good one