Re: Documentation Edit Request - smtpd_reject_unlisted_recipient

2022-05-10 Thread James Feeney
On 5/10/22 16:47, Wietse Venema wrote: With this setting, mail will be ACCEPTED when the recipient address: Sorry, that is incorrect. Postfix features of the form "reject_" cannot promise that a recipient (or sender, client, helo) will be accepted when their predicate is false. They can't

Re: Documentation Edit Request - smtpd_reject_unlisted_recipient

2022-05-10 Thread Wietse Venema
> With this setting, mail will be ACCEPTED when the recipient > address: Sorry, that is incorrect. Postfix features of the form "reject_" cannot promise that a recipient (or sender, client, helo) will be accepted when their predicate is false. They can't promise that, because there may be a

Re: Documentation Edit Request - smtpd_reject_unlisted_recipient

2022-05-10 Thread James Feeney
On 5/7/22 13:18, Wietse Venema wrote: James Feeney: At http://www.postfix.org/postconf.5.html : smtpd_reject_unlisted_recipient (default: yes) Request that the Postfix SMTP server rejects mail for unknown recipient addresses, even when no explicit reject_unlisted_recipient access

Re: Alias and user same name: What happens?

2022-05-10 Thread Viktor Dukhovni
On Tue, May 10, 2022 at 09:03:59AM +0200, lutz.niede...@gmx.net wrote: > userA and userB are real local users with a mailbox. What happens in > case of an aliases line like this: > > userA: userA, userB > > Does it deliver to local users userA and userB? I assume that it does not > loop.

Alias and user same name: What happens?

2022-05-10 Thread lutz . niederer
Hi, userA and userB are real local users with a mailbox. What happens in case of an aliases line like this: userA: userA, userB Does it deliver to local users userA and userB? I assume that it does not loop. Thanks & cheers! -lutzn

Re: dkim signing outbound MAILER-DAEMON messages - is it worth it?

2022-05-10 Thread Matus UHLAR - fantomas
On 09/05/2022 12:48, Matt Kinni wrote: I have opendkim configured via 'smtpd_milters' to sign all outbound mail, and my domain publishes a "quarantine" dmarc record to enforce the consequences of this. I recently discovered that MAILER-DAEMON messages generated by postfix itself bypass this

Re: dkim signing outbound MAILER-DAEMON messages - is it worth it?

2022-05-10 Thread Viktor Dukhovni
On Mon, May 09, 2022 at 03:03:42PM -0400, Wietse Venema wrote: > > - I don't quickly have an example of bad things that can happen > > with Milter inspection of Postfix-generated mail. That doesn't mean > > that such bad things don't exist. > > So, with that caveat you can turn on DKIMM signing