It would be worth a $5 VPS investment to set up a proper email server with dovecot and postfix. Observe how they work together. Use maximum verbosity and read the logs. You can use one of those cheap TLDs nobody but the spammers use. They cost a dollar or so. Namecheap is peddling cyou.
Original Message
From: rdiezmail-2006@yahoo.de Sent: November 2, 2020 12:33 PM To: john@voipsupport.it Cc: dovecot@dovecot.org Subject: Re: Delivering locally through the Submission Server
what should it do with the non local messages or local messages directly at aliases?
OK, so I gather that the Submission Server cannot do that (yet).
My suggestion for a future version would then be: How about running dovecot-lda, if the user happens to be local, or a local alias? Or at least provide some sort of pattern matching: anything matching *@example.com , pass the message to dovecot-lda .
It feels strange that a plug-in accessing the local user database for authentication purposes, and running on the same Dovecot server instance, needs to use an MTA to deliver a local message, it is like going out to come back in again. But I do not know much about mail servers yet. Have I missed some important concept here that makes this idea silly indeed?
Regards, rdiez