My Google Postmaster domain reputation went from bad to high in 6 weeks. Here is every change I made
postmaster_natasha · 2026-07-27 · 980 views
Six weeks ago my main cold email domain had a bad reputation in Google Postmaster Tools. Not spam, not low. Officially bad. Reply rates on Gmail addresses had dropped to under 1%. I was booking two meetings per week instead of twelve.
I made five specific changes over six weeks. Domain reputation is now high. Reply rate on Gmail addresses is back at 3.8%.
Change 1: Stopped sending to Gmail addresses entirely for two weeks. Only sent to Microsoft and custom business domains during the recovery period. This let my spam complaint rate drop to near zero without stopping my operation.
Change 2: Triple-verified my list. I had been running a single ZeroBounce pass. Switched to ZeroBounce first, then MillionVerifier as a second check. Cut another 9% of addresses I thought were clean. Bounce rate went from 3.1% to 0.6%.
Change 3: Removed all open tracking. I had custom domain tracking enabled, which I thought was safe. Postmaster data suggested otherwise. Removed tracking from every campaign. GlockApps inbox placement improved by 8 points within two weeks.
Change 4: Pulled back daily sends from 18 to 8 per inbox for the first two weeks. Let the domain breathe.
Change 5: Added a warmup-only inbox on the recovering domain. PuzzleInbox set up the additional inbox in 24 hours. The extra warmup engagement signals helped the recovery significantly.
Week 3: reputation moved from bad to medium. Week 6: moved to high. Gmail reply rates followed the reputation upward on a similar curve.
If your Postmaster reputation is bad, fix infrastructure and list quality first. Copy changes do nothing when your domain is flagged. Fix the signal, then fix the message.