Tools

SPF validator

With this tool you can inspect and validate the SPF settings for your domain. We'll test the record against all requirements from the SPF standard.

DKIM validator

With this tool you can inspect and validate a DKIM record placed under your domain. We'll test the record against all requirements from the DKIM standard.

DMARC validator

With this tool you can inspect and validate a DMARC record placed under your domain. We'll test the record against all requirements from the DMARC standard.

MTA-STS validator

With this tool you can inspect and validate MTA-STS implementation for your domain. We'll test all required DNS settings, as well as the policy server.

SMTP TLS reporting validator

With this tool you can inspect and validate if SMTP TLS reporting is configured correctly for your domain.

BIMI validator

With this tool you can inspect and validate a Brand Indicators for Message Identification (BIMI) DNS record.

We'll test all requirements against the current BIMI draft: BIMI-02.

DNS record splitter

Some DNS service providers require you to split long TXT resource records into 255 characters parts.

You can use this tool to split a DNS resource record value into 255 character parts.