Set up correctly. Nothing to do.
Works, but worth tidying up.
Missing or broken. Inboxes may send you to spam.
What DKIM does
DKIM (DomainKeys Identified Mail) adds a signature to every email you send. Inboxes look up the matching public key in your DNS to confirm the email wasn't faked or changed on the way.
The key lives under a name called a selector. Enter yours, or leave it blank and we'll try the one Author.Email uses and about 30 common ones. We also read the key length: 2048-bit is the standard today, and 1024-bit is the minimum.
How to set up DKIM
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Find the DKIM record in your email service
It is on the domain or authentication settings page, as a TXT or CNAME record.
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Add it at your DNS provider
Copy the host name and value exactly. The host ends in ._domainkey.
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Check it here
Enter the selector, which is the part of the host before ._domainkey.
Questions
Where do I find my selector?
In your email service's domain settings. It's the first part of the DKIM host name. In mailer._domainkey.janeauthor.com, the selector is mailer.
Why does it say it couldn't find a key?
We only know where to look if the selector is a common one. Enter yours and check again.
Can I have more than one DKIM key?
Yes. Each service that sends as you uses its own selector, so they never clash.
Is a 1024-bit key OK?
It still works, but 2048-bit is the recommended length. Ask your email service whether it can issue a longer key.
Start for free.
Give us 30 days to try it out, totally free. Don’t like it? Go your own way, with no contracts to break, no money to lose, and no hard feelings. But we’re betting you’ll like it.