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Deliverability

Google Postmaster monitoring

Gmail is where a lot of your list lives, and Google Postmaster Tools is how Gmail tells you what it thinks of your mail. Climails pulls those signals in so you can watch reputation and spam rate without leaving the product.

4 min read

What you can see

  • Domain reputation — Gmail's standing for your sending domain.
  • Traffic and spam rate — how much of your Gmail mail is marked spam over time.
  • Delivery errors — signals that something is being rejected or throttled.

Why it matters

Reputation drops before disaster — a rising spam rate is an early warning you can act on before deliverability craters. Watching it lets you pause a bad send, clean a segment or slow down before Gmail starts filtering you.

Postmaster data is read-only insight from Google. It complements your in-app analytics (which already filter bots and Apple MPP) with Gmail's own view.

Frequently asked questions

What spam rate should I stay under?

Keep it as low as possible; a persistently elevated spam rate is a red flag. Use the trend to catch problems, not just the single number.

Is this the same as my open/click analytics?

No — analytics measure engagement with your sends; Postmaster is Gmail's own reputation and spam-rate view of your domain.

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Monitor Gmail reputation with Google Postmaster Tools — Climails