On 7/14/23 6:06 PM, Thomas Cameron wrote:
I'm trying to figure out how to block this stuff. Something like "if
it appears to come from me, but it's not actually coming from my
email server," block it.
SPF with hard fail in your own domain /and/ filtering that respects SPF
hard fail will almost certainly stop this like a switch.
On 7/14/23 7:28 PM, Thomas Cameron wrote:
But because I use several mailing lists, I do not have a hard fail
set up. I get SO many notices when I send email to lists that I'm really
worried about defining hard failures/rejections.
I consider that to be a failure on the mailing list's part.
Mailing lists can't successfully operate like they did 25+ years ago.
But I'll play around with what you suggested.
+10 for SPF.
+1 for encouraging mailing list operators to get with the times.
You can also do as Robert suggests and use a separate (sub)domain for
mailing lists with different SPF settings thereon.
Grant. . . .
