[Mailman-Users] Excessive bounces to list members on my list

[Peter Shute]

> On 1 May 2014, at 12:47 am, "Mark Sapiro" <mark at msapiro.net> wrote:
> 
>> On 04/30/2014 06:20 AM, Larry Finch wrote:
>> 
>>> On Apr 30, 2014, at 5:11 AM, Peter Shute <pshute at nuw.org.au> wrote:
>>> 
>>> Is yahoo doing the same thing for yahoo groups?
>> 
>> Yahoo doesn’t have to. Mail from a Yahoo group already has a Yahoo domain in the From field - the group address.
> 
> 
> To be more precise, mail from yahoo groups has an envelope sender
> @returns.groups.yahoo.com so it passes SPF with a domain aligned with a
> yahoo.com From:.
> 
> I don't know what Yahoo groups is doing with mail From: aol.com or
> others with p=reject. A subject for further testing ...

Another question is what happens if yahoo groups receive aol  bounces. They might not use them to disable or unsubscribe members, which would limit the damage to just non delivery.

Peter Shute