Question Best SPF record to use?

[SalvadorS]

Server operating system version

Debian

Plesk version and microupdate number

18.0.45

As nearly all the mail sent from my Plesk servers goes to spam in gmail or hotmail and after checked all I can check, I am wondering what is your best DNS SPF TXT record for your domains. I found a lot of examples but I don´t know what is the best line to tune the record.

Can you please tell me what line are you using?

Thank you

 

[Monty]

There are tools out there that help you to create SPF records, example: SPF Record Generator - MxToolBox

All you'll need to do is to know the answers to the questions (like, who is allowed to mails with your domain).

 

[SalvadorS]

Thanks for the reply. The record I obtained is:

v=spf1 a mx a:server.domain.com ip4:x.x.x.x ?all

It is similar as yours? Any more to add?

 

[Monty]

If your server is the only system that is sending mails for your domain then this record will be good enough. But you should change your qualifier (last part of the record). Your current qualifier is "neutral", ie. no action will be applied.

Start with softfail (~) and if nothing breaks after a couple of days switch to fail (-).

Qualifiers are explained here: Sender Policy Framework - Wikipedia