Patrick O'Callaghan wrote:
> On Tue, 2018-03-27 at 17:27 -0400, Todd Zullinger wrote:
>> Hi all,
>>
>> As we've discussed in this thread and others recently,
>> messages from subscribers @yahoo.com do not reach
>> subscribers @gmail.com (among others). This is due to an
>> aggressive policy set by Yahoo which breaks mail sent via
>> the mailing list.
>>
>> The mitigation enabled should change the From: address of
>> the outgoing mail to the list address. This should only
>> apply to users of @yahoo.com and other domains which set a
>> similar DMARC policy. Subscribers at other domains should
>> see no change to the From: address of mail they send to the
>> list.
>>
>> I believe that only the email address will be changed, and
>> not the sender's name, but I am not certain of that yet.
I did check the mailman source code and it does leave the
user name mostly untouched. So (presuming @example.com has
a DMARC 'reject' policy),
From: Some User <someuser@xxxxxxxxxxx>
would be changed to
From: Some User via users <users@xxxxxxxxxxxxxxxxxxxxxxx>
>> Hopefully this mitigation will work well and provide an
>> overall improvement to the list. If not, we'll revert it.
>
> That seems to be a sensible change. Perhaps one or two yahoo.com users
> could post here just to check it's working and we gmail.com users can
> see their messages.
>
> Of course as long as nothing appears we'll have to keep checking HK to
> see if we're missing something ...
Or you'll notice replies to messages you've not seen. :)
Maybe we'll be lucky and everyone will move off @yahoo.com,
giving the infrastructure team a nice present.
--
Todd
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
To have a successful relationship, I must learn to make it look like
I'm giving as much as I'm getting.
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