Sender Reputation

See what Gmail actually thinks of you.

Gmail is usually your largest single receiver, and Google Postmaster Tools is the only first-party reputation signal it exposes. SenderSignal connects to it live and charts domain reputation, IP reputation, spam rate and auth compliance, right next to your blacklist score.

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reputation · postmaster · acme.io
Gmail · Postmaster viewsynced 14 min ago
The integration

Google's own numbers, without the tab-hopping.

Connect a domain once and SenderSignal keeps pulling Gmail's first-party metrics, charted over time so trends are visible, not just today's snapshot.

Reputation

Domain & IP reputation

Gmail's rating of your sending domain and the IPs behind it, tracked over time so a slide shows up as a trend line, not a surprise.

Complaints

Spam rate & feedback loops

User-reported spam rate plus feedback loop identifiers, so you can tie complaint spikes back to specific sending.

Authentication

SPF, DKIM & DMARC compliance

The share of your Gmail-bound traffic that passes each check, Gmail's view, which is the one that decides placement.

One asset page

Correlate cause and effect on a single screen.

Postmaster data appears alongside the 0-100 blacklist score on the same asset page. When Gmail says your spam rate rose, you see it next to new listings and authentication changes, so the “why” is one glance away, not an investigation.

  • Live sync, Postmaster syncs are scheduled roughly every 15 minutes for due connections
  • Per-plan quotas, daily refresh quotas scale with your plan
  • Charted over time, reputation, spam rate and compliance as trends, not snapshots
  • Side by side, Gmail's view next to the 0-100 blacklist score on the same page
  • Gmail today, Microsoft (Outlook) and Yahoo sender reputation are coming soon
asset · acme.io · correlation
Why it matters

The signal most teams never look at.

Postmaster Tools is free, first-party and decisive, and it sits in a separate Google console most senders check never or rarely. SenderSignal brings it to where you already watch everything else.

First-party

Straight from the receiver that matters most

Third-party lists infer your reputation from traps and reports. Postmaster is Google telling you directly how Gmail rates your domain and IPs, the only first-party reputation signal it exposes.

Roadmap

Gmail today, more receivers next

The live integration covers Google Postmaster Tools today. Microsoft (Outlook) and Yahoo sender reputation are coming soon, we're explicit about that, because you should know exactly which receiver's view you're looking at.

Goes well with

Reputation is the output, watch the inputs too.

Feature

Blacklist monitoring

48 blacklist & reputation sources, scored 0-100 with trend history.

Learn more Feature

Deliverability monitoring

SPF, DKIM, DMARC, MTA-STS, BIMI, TLS, MX and PTR, checked continuously.

Learn more Feature

Inbox placement testing

See whether you land in Primary, Promotions or Spam across providers.

Learn more
Use case

E-commerce

Protect revenue-critical campaigns from silent blacklistings.

See the playbook Use case

High-volume senders

Watch IP fleets and domains at 15-minute resolution with paid feeds.

See the playbook
Questions

Sender reputation, explained.

What data does the Google Postmaster integration show?
Once you connect a domain, SenderSignal charts Gmail’s own view over time: domain reputation, IP reputation, spam rate, feedback loop identifiers, and SPF, DKIM and DMARC compliance rates, all inside SenderSignal, next to your other monitoring data.
How fresh is the data?
The platform schedules Postmaster syncs roughly every 15 minutes for connections that are due, subject to per-plan daily refresh quotas. Higher plans get more daily refreshes.
Does this cover Outlook and Yahoo too?
Not yet. Today the integration is Gmail via Google Postmaster Tools. Microsoft (Outlook) and Yahoo sender reputation are coming soon.
Why should I care about Postmaster if I already monitor blacklists?
Gmail is usually the largest single receiver of your mail, and Postmaster is the only first-party reputation signal Google exposes. A blacklist tells you what third-party lists think; Postmaster tells you what Gmail itself thinks, and most teams never look at it.
How does this connect to the rest of SenderSignal?
Reputation data appears alongside the 0-100 blacklist score on the same asset page. When Gmail says your spam rate rose, you can immediately correlate it with new listings or authentication changes on the same screen instead of juggling tabs.
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Stop guessing what Gmail thinks.

Connect a domain to Google Postmaster Tools and see reputation, spam rate and compliance charted inside SenderSignal.

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