Thanks Wietse, that works. Almost... Had to add "receive_override_options = no_address_mappings, no_unknown_recipient_checks" to make sure local recipients/aliases are preserved, and moved that to a separate smtpd port for that I use only for sending through external ESP servers. Now it all works as desired.
Regards, Robert Am Montag, dem 24.07.2023 um 14:18 -0400 schrieb Wietse Venema via Postfix-users: > Robert Senger via Postfix-users: > > Hi Viktor, > > > > thank you. So, it's not possible to route email different when sent > > from an authenticated user through port 587, than imcoming email > > sent > > through port 25? This would avoid a loop, as far as I understand > > things... > > Postfix routing does not care if email was received via MUA service > (submission), MTA service (port 25), command line, or otherwise, > > You can override routing in the port 587 SMTP daemon with content > filter actions, for example, a check_sender_access map with > "u...@example.net FILTER smtp:isp-for-example-net" but configuration > will be simpler without context-dependent routing. > > Wietse > > > I think I'll set up a separate instance for the external accounts > > in > > the long run. > > > > Regards, > > > > Robert > > > > > > Am Montag, dem 24.07.2023 um 10:00 -0400 schrieb Viktor Dukhovni > > via > > Postfix-users: > > > On Mon, Jul 24, 2023 at 03:53:17PM +0200, Robert Senger via > > > Postfix- > > > users wrote: > > > > > > > I have a few freemail accounts that I use mainly for testing > > > > and > > > > special purposes. All those accounts are forwaring incoming > > > > mail to > > > > a > > > > corresponding account at my ow server, like > > > > "r.senger_<espname>@example.com". For sending, I've defined > > > > sender_dependent_relayhost_maps that relay all mail sent by any > > > > of > > > > these accounts to the ESP's smpt server (credentials stored in > > > > sasl_passwd). > > > > > > > > That works fine as long as mail ist sent to foreign domains. > > > > But if > > > > I > > > > send mail from one of these local accounts to any recipient at > > > > the > > > > local domain, e.g. robert.sen...@example.com, it gets delivered > > > > locally > > > > rather that though the ISP's server, since > > > > sender_dependend_relay_host_maps has low priority. This can for > > > > example > > > > cause issues if the mail goes to a locally hosted mailinglist, > > > > since it > > > > misses the ESP's dkim signature when sent out to the > > > > subscibers. > > > > > > > > Is there a possibility to get all mail sent from a certain > > > > local > > > > authenticated user through an external relay, even if the > > > > recipient > > > > is > > > > a local virtual user? > > > > > > > > I know I could configure the MUA to use the ESP's smpt server, > > > > but > > > > that's not desired. I think a multi instance setup could do > > > > that > > > > job, > > > > but that requires a lot reconfiguration of the system. > > > > > > What you propose would loop, when the mail returns to your system > > > for > > > delivery.? The simplest approach is a separate Postfix instance > > > that > > > for outbound mail that does not have any "local" domains, all > > > mail > > > is relayed somewhere else, possibly to the inbound instance for > > > local > > > delivery. > > > > > > ??? https://www.postfix.org/MULTI_INSTANCE_README.html > > > > > > > -- > > Robert Senger > > > > > > > > _______________________________________________ > > Postfix-users mailing list -- postfix-users@postfix.org > > To unsubscribe send an email to postfix-users-le...@postfix.org > > > _______________________________________________ > Postfix-users mailing list -- postfix-users@postfix.org > To unsubscribe send an email to postfix-users-le...@postfix.org -- Robert Senger _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
