Something that might help the discussion: I am using picolisp as the mailing list software for the Greek database community. However, in order to mitigate issues with mail receivers I relay outgoing email via Mailgun (it can be any of the mail sending relays not them especially). It costs something like $7 per month (depends on the volume) but complains went away. Ping me privately if you want to discuss this further.
On Sat, 8 Apr 2023 at 10:53 Alexander Burger <picolisp@software-lab.de> wrote: > Hi all, > > we noticed that many mails did not reach the members of this list, due to > new > DMARC policies of some e-mail providers. > > The problem is that DMARC uses the mail header's "From" address (and not > the > "Sender:"). But in a mailing list, this address is the author of the mail, > and > not the list server which relays the postings. As a result, the postings > are not > transmitted. > > I changed the PicoLisp mailer now, so that it puts the *name* of the > sender (if > known), combined with the e-mail address of the list, into the "From:" > header, > and the original "From:" address into "Sender:".. > > > A drawback of this change is that now the author's real e-mail address is > not > immediately visible in e-mail clients. You have to inspect the "Sender:" > header > field to get it. > > Or is that even and advantage (privacy)? > > > Let's see how this works out! > > ☺/ A!ex > > -- > UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe > -- keep raising the bar || http://theheadphonesrule.dev/