Email deliverability score
Will email from your domain reach inboxes, and can others fake it? Enter a domain or an email address for a score out of 100 and exact fixes.
What is checked
SPF lists the servers allowed to send mail for your domain. DKIM signs each email so it can't be changed on the way. DMARC tells receivers what to do with mail that fails those checks. Since 2024 Gmail and Yahoo expect all three from anyone sending in bulk.
The checks run in your browser using public DNS. Nothing is sent to us, and no email is sent.