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n5bb · 31 Jan 2018, 02:54 AM

I have DMARC set up for my personal domain. Here is what you need to do (assuming your domain was example.com):

Set up a SPF record for your domain and only send from servers allowed by that record.
Set up a DMARC record for your domain and only send through outgoing servers which properly sign your messages.
Add a TXT record for your domain with the name _dmarc.example.com and contents similar to:
Code:
```
v=DMARC1; p=quarantine; rua=mailto:postmaster@example.com; ruf=mailto:postmaster@example.com
```
The policy (p=) can be “none”, “quarantine”, or “reject”. I tried all three, and was brave enough to start using p=reject a few months ago. So far it seems to be working well.
”rua” are aggregate reports. “ruf” are failure reports. See FAQ here:
https://dmarc.org/wiki/FAQ

Bill

31 Jan 2018, 02:54 AM	#2
n5bb Intergalactic Postmaster Join Date: May 2004 Location: Irving, Texas Posts: 8,925	I have DMARC set up for my personal domain. Here is what you need to do (assuming your domain was example.com): Set up a SPF record for your domain and only send from servers allowed by that record. Set up a DMARC record for your domain and only send through outgoing servers which properly sign your messages. Add a TXT record for your domain with the name _dmarc.example.com and contents similar to: Code: v=DMARC1; p=quarantine; rua=mailto:postmaster@example.com; ruf=mailto:postmaster@example.com The policy (p=) can be “none”, “quarantine”, or “reject”. I tried all three, and was brave enough to start using p=reject a few months ago. So far it seems to be working well. ”rua” are aggregate reports. “ruf” are failure reports. See FAQ here: https://dmarc.org/wiki/FAQ Bill