SQLite Forum

Nothing for several days from the forum
A theory of the problem:

When sqlite.org is sending email, it might send the message from either
of two different IP address:

  * ipv4:
  * ipv6:  2600:3c00::f03c:91ff:fe96:b959

The metrics provided to me by [Google Postmaster Tools][1] show that has the best
possible "IP Reputation", but that 2600:3c00::f03c:91ff:fe96:b959 has the
worst possible IP Reputation.  The bad IP Reputation for 2600:3c00::f03c:91ff:fe96:b959
appears to be because Gmail is grouping all traffic from any
2600:3600:: IP address into a single pool.  At least, that is what
[Google Postmaster Tools][1] is telling me.  It is as if they are only
considering the first 32 bits of the 128-bit IP address.

[1]: https://gmail.com/postmaster/

I have adjusted the configuration of [postfix][2] on sqlite.org so that it
now only sends email via IPv4.  Perhaps this will help.

[2]: http://www.postfix.org/

If you have alternative suggestions, please speak up.