Re: [mailop] sendgrid sending spam claiming to be chase.com

2019-12-24 Thread Jay Hennigan via mailop
On 12/24/19 12:54, Mark Milhollan via mailop wrote: The problem there is that what was once okay might turn to crud or DNS responces might be different for you than for them.  The former should be detectable if they were to do it as they forward/relay but the odds of that are low so Sendgrid m

Re: [mailop] sendgrid sending spam claiming to be chase.com

2019-12-24 Thread Mark Milhollan via mailop
On Mon, 23 Dec 2019, Carl Byington wrote: The spam was sent with a From: header of @email.chase.com. _dmarc.email.chase.com. has a txt record with p=reject, so it was rejected here. Sendgrid - you should be able to check that at your end, and just not send anything that violates the dmarc restri