Re: DMARC methods in mailman

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Hi Philip,
At 03:06 20-12-2016, Philip Homburg wrote:
What about adding a checkbox in the mailman profile for subscribers of the
lists that basically says: if you detect that the sender is using DMARC then
please rewrite the From header.

There is already code in Mailman, e.g. if not (msgdata.get('from_is_list') ... to do the above. The configuration can be set by AMS.

People who receive the list on a yahoo account would have to mark the checkbox
(though maybe a list of default domains can be hacked in such that new
subscribers for those domain would get it set automatically)

The focus has been on Yahoo because of a message which was posted several years ago. I collected some statistics for an IETF mailing list. Approximately 40% of the subscribers are using [1] DMARC; most of then are not using Yahoo.

Regards,
S. Moonesamy

1. This is not the percentage of subscribers using "p=reject".



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