[pfx] Re: New to Postfix, Google problems

On Tue, 04 Aug 2026 19:34:55 +0200
Ralph Seichter via Postfix-users <[email protected]> wrote:

> * Jaroslaw Rafa via Postfix-users:
> 
> > If you aren't a significantly large scale sender (send at least a
> > few hundred messages per day towards Google), your Google
> > Postmaster Tools won't show any data at all.  
> 
> Also, without requiring any data analysis, the following has proven a
> good baseline for me: Implement DKIM & SPF (and DANE, if possible).
> Google seems to reject pretty much all mail which fails the DMARC
> alignment test. If that seems like a lot of work, well, that's what it
> takes to operate an MTA in 2026.
> 
Thanks to all for suggestions.

My concern is that I was sending to Gmail recipients perfectly well
through the old server using exim4, then about four days later when I
got Postfix running on new hardware using an equally self-signed
certificate, it wasn't working. There was no change to the domain
credentials, which are just SPF.

It may be that Google got more picky in that four days, but I was
hoping it was some simple misconfiguration of Postfix. with which I
have no previous experience. Maybe not.

-- 
Joe 
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