Ver en español

Delivery auditing

Catch technical delivery risks before a send goes live.

Delivery Auditing helps you review the signals most likely to affect whether an email lands cleanly. Instead of waiting until after a campaign is sent, you can catch authentication problems, spam risks, and infrastructure issues before they turn into delivery surprises.

What We Check

Authentication

  • SPF

    Checks whether your sending server is allowed to send email for your domain, which helps mailbox providers trust the message.

  • DKIM

    Checks whether the email was signed correctly, which helps prove it was not altered after it was sent.

  • DMARC

    Checks whether your authentication policy is set up properly, which helps providers decide how to handle suspicious mail.

Reputation

  • IP Abuse Detection

    Checks whether the sending IP shows signs of abuse or prior bad behavior, which can hurt inbox placement even if the email itself looks fine.

Spam

  • SpamAssassin

    Checks how a common spam filter is likely to score your email, which helps you catch content or configuration that may look risky.

Performance

  • Delivery speed

    Checks how quickly the message is accepted and delivered, which can matter when timing is important for launches or automations.

Ready to catch issues before you send?

See real screenshots, review accessibility findings, and check delivery signals in one place.

Try Preflight free for 14 days

No charge today. Cancel anytime before your trial ends.