Re: [nanog] Re: Gmail (thus Nanog) rejecting ipv6 email

["Dan Mahoney (Gushi)" <danm () prime gushi org>]

On Sun, 3 Apr 2022, Niels Bakker wrote:

> I also run my own mail server. I had to firewall off Google's MXes for this 
> exact reason: silent and not-so-silent email rejection when offered over 
> IPv6.
>
> Every now and then they rotate their IP addresses, which causes mail to get 
> dropped for a while.
>
> There is no other conclusion possible than that Gmail is actively anti-email 
> at this point. I'm pretty sure I receive more spam from them than I send to 
> them, despite forwarding all emails for a few family members' domains.

I too have encountered this.

This comes up on mailop periodically.  It kind of makes me want to drop 
entries for the various gmail.com MXes in /etc/hosts, because while 
postfix gives me a way to override the one domain (say, gmail.com) it's 
whack-a-mole with the various gmail-hosted-domains.

Bind9 has a filter-aaaa feature, but it doesn't quite work this way, 
easily, and of course it breaks DNSSEC.

It's my opinion (not that of my employer, necessarily), that gmail is to 
email as old-school AOL is to the internet.

<beard color="#808080">

And it's september.

</beard>

-Dan


--

--------Dan Mahoney--------
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