On Sat, May 17, 2025 at 2:52 AM Simplelists - Andy Beverley via mailop <mailop@mailop.org> wrote: > > On 16/05/2025 22:49, Al Iverson via mailop wrote: > > IMHO the days of sending as a domain where you can't authenticate it > > directly with aligned DKIM are over. A lot of ESPs nowadays just > > rewrite the visible from domain unless DKIM is specifically configured > > appropriately. No other workarounds, no sender header, none of that. > > You might be right in the long-term, but I think we are a little way off > yet. We generally don't have any problems delivering the vast majority > of emails in this manner, and even this particular problem seems like > something of an edge case (and maybe unintended?)
I don't mean this rudely, honestly! But it feels like your defense is along the lines of, "well, it's fine because the ducks haven't entirely nibbled us to death just yet." You're not wrong. Not everybody blocks like this. Not everybody will. But we're in a long transition phase that started a few years ago and over time, this is slowly becoming more and more of a problem. Options: chase after it and address it one by one, repeatedly, or just adjust the sending model once, fully, and never have to think about it again. I like the idea of just "fix it once and be done with it," both because it requires less work and because it's a more future-proof configuration. > Fair enough, although I think I would have expected some consistency. > E.g. treating hotmail.com and hotmail.co.uk the same. Also fair. But I can totally see how this would happen, if somebody were choosing specific domains based on either volume of mail or volume of spoofing. COM > UK for sure, by multiple measures. I guess somebody didn't release all the ducks for a consistent nibbling attack. :) Cheers, Al Iverson -- Al Iverson // 312-725-0130 // Chicago http://www.spamresource.com // Deliverability http://www.aliverson.com // All about me https://xnnd.com/calendar // Book my calendar _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
