![](https://secure.gravatar.com/avatar/85a99b25cf78c0293215f307acd00fb9.jpg?s=120&d=mm&r=g)
CPANEL does all the heavy lifting for me - e.g. I don't have to add any code anywhere - the only thing that I have to do is make sure the correct spf, dkim and dmarc dns records exist on my name server for each of my domains- which they do. Pretty sure opendkim is not being used by CPANEL.
Is python.org using mailman 2.x or 3.x ?
The reason I ask is that the email the python.org list sent out was DKIM signed correctly. The email I got from msapiro.net did not pass DKIM nor DMARC which is not always fatal - since I did get your email, but more email servers are starting to pay more attention to those failures - and causing those of use that use mailman to distribute emails to be getting more and more frustrated with things not being signed and causing failures of one kind or another .... I check if I can see any DKIM settings in EXIM - but there is a reason I use a WHM/CPANEL on my VPS servers - unix administration is not my strong suit ... about all I can say is that I do know how to spell unix .....