Email tools
Check and build the records that keep your mail delivered and your name safe from spoofing, and see whether a blocklist is turning your mail away. We warn you about mistakes before they cost you deliverability.
Email tools
SPF checker
Validate your SPF record and count lookups against the limit of 10.
DMARC checker
Read your DMARC policy and what it asks receivers to do.
SPF generator
Build a correct SPF record from the services you send with.
DMARC generator
Roll out DMARC safely, from monitoring to reject.
DKIM checker
Find a domain's DKIM keys, even without the selector.
Blacklist checker
Is an IP, mail server or domain on a spam blocklist?