DMARC issues

[howlegh]

We are tightening our DMARC policy because of gmail/yahoo email requirements.

Unfortunately, now, all emails we send from 3CX (using SendGrid SMTP) are failing DMARC and hitting junk folders.

Does anyone have a solution for this issue? It does not seem to be addressed in the 3CX manual.

 

[xcobean]

Hello,

DMARC should be added on your DNS (Zone) setting on your domain host.

 

[Alphabetic]

https://dmarcly.com/blog/how-to-set-up-spf-and-dkim-for-sendgrid

 

[Lee Cramman]

If you followed the guide without luck there are plenty of free web based DMARC testing tools if you Google.