Re: [Mailman-Developers] Camera-ready option to mitigate DMARC issues

2016-11-05 Thread Mark Sapiro
On 11/05/2016 04:11 AM, Alessandro Vesely wrote: > > The idea is to add a footer only in case it is not present, similar to > what is done with subject_prefix. By properly setting both of them, a > sender can submit what can be called a camera-ready post. Since no > change applies, no DKIM

Re: [Mailman-Developers] MM3 DMARC mitigations

2016-11-05 Thread David Andrews
At 11:06 AM 11/5/2016, Mark Sapiro wrote: However, I've just become aware that Microsoft has implemented another "feature". So far, the info I have is this is limited to their "hosted mail services", but it may well spread. What they are doing is looking at incoming mail for signs of

[Mailman-Developers] Camera-ready option to mitigate DMARC issues

2016-11-05 Thread Alessandro Vesely
Dear all, I'd like to probe the feasibility of this option. The idea is to add a footer only in case it is not present, similar to what is done with subject_prefix. By properly setting both of them, a sender can submit what can be called a camera-ready post. Since no change applies, no DKIM

Re: [Mailman-Developers] MM3 DMARC mitigations

2016-11-05 Thread Mark Sapiro
On 10/31/2016 03:08 PM, Eric Searcy wrote: > > That reminds me. I have a proposed idea for another nice-to-have, that > I'm mentioning now in case it has any impact on the architecture you are > describing. Some email systems (e.g. Exchange) do not accept any > inbound email crossing their edge