~ / mail

$ dig MX example.com +short

Mail Check

Everything a receiving server looks at before deciding whether to trust your mail: MX records and their reverse DNS, SPF, DKIM, DMARC, transport security, and whether the sending addresses are on a blocklist.

$

Around 70 DNS queries per check, so give it a moment.

 

Enter a domain to check its mail setup.

Nothing runs until you ask — a check is around 70 DNS queries.