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MailSenpai DNS Check

MailSenpai DNS Check

Free SPF, DKIM, DMARC and MX checker that tells you the fix

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Check any domain's SPF, DKIM, DMARC and MX records in seconds and get plain-English fixes with the exact values to publish. Plus SPF and DMARC generators, an email header analyzer, an embeddable widget, a free JSON API and an MCP tool for AI assistants.

MailSenpai DNS Check makers

Here are the founders, developers, designers and product people who worked on MailSenpai DNS Check

MailSenpai@mailsenpai
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