Question on Google Feedback Loop

Vroom

Member
I send around 300,000 emails a day to a newsletter list. In google postmaster tools, the spam rate (FBL) is always 0.0% (forever, going back years).

I have checked and the FBL header is in the emails.

So does google round down to 0% if its a low number? I would think there would probably by 5 or 10 reports out of 300,000 mailings, as I get that with yahoo FBL.

Any other ideas?
 
Also is there any way to unsubscribe gmail users who would report? As far as I know gmail doesn't share the email with us, so any other way?
 
I also have 0 in postmaster tools but never actually investigated this.
Also is there any way to unsubscribe gmail users who would report? As far as I know gmail doesn't share the email with us, so any other way?
We use headers to identify the right email.
 
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