On Tue, Mar 22, 2016 at 10:36 PM, Luke Martinez <luke.marti...@sendgrid.com> wrote:
> That's interesting. From an ESP's prospective, deciding to use a different > domain in the from address is simply not an acceptable option. That being > said, I wish we had a good way to tell senders that they are heading for > trouble. You would be surprised how many senders don't know that there is a > part of their infrastructure that is using these domains in their from > address. > We are a small ESP, too. Our evasive maneuvers consist of setting the visible From address to one from our own domain, and setting reply-to to the original customer's address. This works just splendidly. We do notify the customers and so far they've tended to switch to using their own domains. The notification is all automatic in our UI. I suppose that's harder to do when most of your customers are accessing your service via an API. > > On Tue, Mar 22, 2016 at 7:54 PM, Vick Khera <vi...@khera.org> wrote: > >> >> On Tue, Mar 22, 2016 at 7:52 PM, Steve Atkins <st...@blighty.com> wrote: >> >>> So if you've been doing anything special with forwarders or mailing >>> lists for yahoo.com >>> >>> it's probably a good idea to do it for their other domains too in the >>> next few days. >>> >> >> When Y! first set up p=reject on their main domain, we built our system's >> evasive maneuvers to work around it to be domain independent. Our systems >> do a DNS lookup for the DMARC record and if they find p=reject or >> p=quarantine and we do not sign using their From address in the domain, we >> automatically enable the workarounds to avoid falling in the trap. No >> manual configuration necessary. >> >> >> _______________________________________________ >> mailop mailing list >> mailop@mailop.org >> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop >> >> > > > -- > > Luke Martinez > SendGrid Deliverability Consultant > 520.400.5693 >
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