Re: [Mailman-Users] options for dealing with DMARC

2018-01-16 Thread Mark Sapiro
On 01/16/2018 08:43 AM, John Levine wrote: > In article > you write: >> On 12/28/2017 12:57 PM, Jordan Brown wrote: >>> Wikipedia tells me that DMARC passes if either SPF or DKIM passes. > > That is correct. But only if the

Re: [Mailman-Users] options for dealing with DMARC

2018-01-16 Thread John Levine
In article you write: >On 12/28/2017 12:57 PM, Jordan Brown wrote: >> Wikipedia tells me that DMARC passes if either SPF or DKIM passes. That is correct. >Sending domain administrators can require that *both* SPF /and/ DKIM

Re: [Mailman-Users] options for dealing with DMARC

2017-12-29 Thread Stephen J. Turnbull
Jordan Brown writes: > per se.  I don't want to turn on any domain-global rejection of > "failing" mail, because I wouldn't want to reject messages sent to the > non-mailing-list addresses. You should think twice about that. The reason why AOL and Yahoo! have turned on the reject policy is

Re: [Mailman-Users] options for dealing with DMARC

2017-12-28 Thread Mark Sapiro
On 12/28/2017 03:48 PM, Jordan Brown wrote: > > On 12/28/2017 1:27 PM, Mark Sapiro wrote: >> As pointed out in item 2 at >> ... > (In looking to see what else I might have missed, I found DEV/DMARC; you > might want to link the two together.) Actually,

Re: [Mailman-Users] options for dealing with DMARC

2017-12-28 Thread Jordan Brown
[ Mark, sorry for the dup.  Sent from the wrong address, so the copy to the mailing list bounced. ] On 12/28/2017 1:27 PM, Mark Sapiro wrote: > On 12/28/2017 11:57 AM, Jordan Brown wrote: >> That's leading me to wonder whether there's another way, whether I can >> leave From alone and still get

Re: [Mailman-Users] options for dealing with DMARC

2017-12-28 Thread Grant Taylor via Mailman-Users
On 12/28/2017 04:33 PM, Grant Taylor via Mailman-Users wrote: Sending domain administrators can require that *both* SPF /and/ DKIM must pass for DMARC to pass.  So your /or/ premise is likely not going to work out as well as you had hoped. (*sigh* It's been a day.) As sure as I say that. I

Re: [Mailman-Users] options for dealing with DMARC

2017-12-28 Thread Grant Taylor via Mailman-Users
On 12/28/2017 12:57 PM, Jordan Brown wrote: Wikipedia tells me that DMARC passes if either SPF or DKIM passes. Sending domain administrators can require that *both* SPF /and/ DKIM must pass for DMARC to pass. So your /or/ premise is likely not going to work out as well as you had hoped.

Re: [Mailman-Users] options for dealing with DMARC

2017-12-28 Thread Mark Sapiro
On 12/28/2017 11:57 AM, Jordan Brown wrote: > > That's leading me to wonder whether there's another way, whether I can > leave From alone and still get past the DMARC checks.  Wikipedia tells > me that DMARC passes if either SPF *or* DKIM passes.  There's no hope > for SPF with the original

Re: [Mailman-Users] options for dealing with DMARC

2017-12-28 Thread Jordan Brown
[ Today is not my day for getting details right.  Sigh. ] On 12/28/2017 11:57 AM, Jordan Brown wrote: > I've been running my mailing list for a few years with "Munge From" to > defend against DMARC rejection.  This means that my messages get > > From: Joe User