Me too, I have my own mta and I use a vps and have spf. As yet, I don't have dkim and mark, but things still seem to work.
On Wed, 14 Sep 2022 06:29:35 -0400, Mark Foster via mailop wrote: > > > On 14/09/2022 9:24 pm, Renaud Allard via mailop wrote: > > > > > > On 9/14/22 10:57, Alessandro Vesely via mailop wrote: > >> * Stop blackholing. > > > > That one is the absolute worst of the worst of the > > worst. Blackholing is something that _MUST NOT_ be done, ever, > > for whatever reason. There is never and has never been a good > > reason for blackholing. If you don't like a mail, give it a 5XX > > error, never accept it. When you have accepted a mail you MUST > > deliver it. > > > > Even "spam folder" is a bad idea. If it's spam, reject it with > > 5XX. You can never be sure people will look in the spam > > folder. And if they do check it, why should it be there in the > > first place, email could as well land in inbox, that's one less > > action to take to see your mails. > > As much as I dislike quarantine, the reality is that the big > players aren't the ones who care when your important email is > miscategorised as spam. > > Just this week it was only through the due-diligence of a local > (New Zealand) company that I didn't lose an in-service domain > name... my anti-spam platform was dutifully issuing 5xx 'this is > spam' errors (and refusing delivery) of domain validation > requests coming from OpenSRS. OpenSRS just kept trying, as if > repeated attempts with the same non-delivery result were somehow > going to change the outcome. They (OpenSRS) did nothing useful > with the 5xx error and the consequence would've been very > disruptive for a service I have a strong interest in, if the > registrar had decided that I was unresponsive as a result and > suspended my service. > (I was first to create an explicit allow policy for the sender, > and ask my (local) vendor to initiate another attempt, which I > then received). > No doubt OpenSRS deal with thousands of non-delivery > notifications, and don't feel like unpicking every single > one. It's up to a Registrant to be contactable via registered > details, right? The consequence of getting it wrong was very much > mine, not theirs. > > Yes my anti-spam vendor was miscategorising the email as spam, no > doubt due to poorly implemented automation reacting to 'this is > spam' feedback from people receiving unsolicited domain-related > correspondence for domains (perhaps not realising that doing so > is creating new heuristics that'll negatively impact anyone else > consuming the same engines if they get it wrong. But anti-spam > measures are imperfect. Blindly expecting 5xx for all spam > reports is not realistic IMO... quarantines and spam-folders are > a reasonable compromise that gives the end-user some ability to > influence the real-world consequences of getting it wrong. > > Perhaps a good time to remind some mailing list participants that > there's more to the Internet than ATT, Verizon and Microsoft ;-) > Especially when we remember the Internet extends beyond North > America. > > From someone still valiantly running their own personal MTA, as a > VPS, and with a little help from third-party anti-spam tooling > and mail relay services on occasion. Generally successfully, and > still strongly disinclined to hand my email environment to an > oligopoly operator. But it's a near thing sometimes. > > Mark. > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop > -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici wb2una cov...@ccs.covici.com _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
