What does this DKIM generator create?

It creates a private key for your mail server and a public TXT value you publish in DNS for signature verification.

What selector should I use?

Use a simple selector like default, s1, or a date-based selector such as mail2026 so rotation is easier later.

Publish it at selector._domainkey.yourdomain as a TXT record containing v=DKIM1 and the p= key value.

Use 2048-bit whenever your DNS provider supports long TXT values; it is the recommended modern baseline.

Rotate at least every 6 to 12 months, or immediately if a private key is exposed.

The DKIM Record Generator creates the cryptographic keys needed to digitally sign your outgoing emails, proving their authenticity.

AI-written reply suggestions

Automated follow-up sequences

Campaign open & click tracking

Unlimited connected accounts

The DKIM Record Generator creates the cryptographic keys needed to digitally sign your outgoing emails, proving their authenticity.

AI-written reply suggestions

Automated follow-up sequences

Campaign open & click tracking

Unlimited connected accounts