On Tuesday 29 April 2014 09:18:41 Daniel-Constantin Mierla wrote:
Is anyone here aware of similar issues and potential fixes? I guess yahoo/hotmail servers simply reject the emails sent by mailman of mailing lists.
Any hint would be appreciated...
It's DMARC at work:
http://www.ietf.org/mail-archive/web/ietf/current/msg87153.html
The subejct says it all: "Yahoo breaks every mailing list in the world including the IETF's"