I used the checker here to validate MX records -- https://toolbox.googleapps.com/apps/checkmx/check
Usual issues:
- MX priority and DNS record capitalization
- MX exchange server listening in port 25
- SPF record not indicated correctly
Usual issues:
- MX priority and DNS record capitalization
- MX exchange server listening in port 25
- SPF record not indicated correctly
Comments