[Mailman-Users] Some site blocking our emails from mailman 2.1.29 ?

[Lindsay Haisley (linode)]

Sent from my iPhone

> On Nov 30, 2018, at 4:17 PM, Matthew Goebel <mgoebel at emich.edu> wrote:
> 
> We've recently had one or two sites block email coming from one of our
> lists.
> They seem to indicate it is because of sending address having bounces in it?

Email is probably the most stressed service on the Internet. It's also probably the most complex and widely misunderstood. There are tons of people out there writing solutions to address email abuse problems. Way too many of them have no idea what's in the email RFC's and how the system is supposed to work.