SPF for Mailer IP

Ahmed Hamdy

• January 30, 2024 22:00

Hello,

I'm using a secondary IP address for sending emails only using (/etc/mailhelo) & (/etc/mailips) with a different subdomain for the hostname.

Example:
Hostname: server.mydomain.com (IP: 111.111.111.111)
Email subdomain: mail.server.mydomain.com (IP: 222.222.222.222)

How can I add the correct SPF for the Mail Subdomain? Which one is correct?
server.mydomain.com >> TXT >> "v=spf1 +mx +a +ip4:111.111.111.111 +ip4:222.222.222.222 ~all"
mail.server.mydomain.com >> TXT >> "v=spf1 +mx +a +ip4:222.222.222.222 ~all"

• 

  quietFinn

  • January 31, 2024 00:37

  Both are correct, in the 1st one "+ip4:111.111.111.111" is not really needed, but it's not causing any problems.

   

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