26 Jun
2014
26 Jun
'14
8:21 p.m.
Thu, 26 Jun 2014 15:50:53 -0400
John Robson
They need the Domain or IP of the Mail Server that is sending that message.
And (maybe can help), what's the sender email?
Well, look in your mail headers ... Host/IP is gerolde.archlinux.org (66.211.214.132) and the sender is $listname-bounces@archlinux.org --byte