Hi @Wietse, I don't have limit From, I suppose. It is possible the problem is mx server?
If I check mx with toolbox.googleapps.com I have this issue: "If you intentionally set up a mail server somewhere *on your premises* that automatically forwards all incoming mail to Google you may disregard this warning. Otherwise - this is a serious configuration error as it causes *disruption of mail flow*. 20 mail.projectinnovation.it" Is it possible that google can't find my server? PS: if I send mail to google, I don't have a problem. Il giorno lun 6 mar 2023 alle ore 14:45 Wietse Venema <wie...@porcupine.org> ha scritto: > mailm...@ionos.gr: > > > > Hello everyone, > > > > My current postfix configuration allows an authenticated (SASL) user to > send emails with any From: address. > > > > 1) Is there a way to limit From: addresses to known/configured > > (virtual_mailbox_domains) domains only? > > Postfix does not limit rfc822.from addresses (i.e. headders). You > will need a content filter for that. > > Wietse > -- linux registered user #400388