Reject spam at SMTP time

[shunkica]

I'm trying to figure out how to reject spam at SMTP time. There doesn't seem to be a "reject" option, and the "block" action simply discards the mail without any notification.

I also want to avoid using "block + notify sender," as this can result in bounce messages being sent to forged email addresses, potentially getting my server blacklisted or caught in honeypots.

I don't want to use the quarantine feature either.

Is there a way to implement a proper reject action based on WHAT objects, which IMO should be a primary functionality of a mail filtering system?

 

[aaron]

Is the "Before Queue Filtering" what you want?
https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html#_features

Found under Configuration -> Mail Proxy -> Options

 

[shunkica]

Is the "Before Queue Filtering" what you want?
https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html#_features

Found under Configuration -> Mail Proxy -> Options

Thank you for your response.

It would appear that this is a part of the puzzle, but I still don't know how to reject the mail, since there is no "Reject" in Action objects.
Will the "Block" action actually reject when "Before Queue Filtering" is activated?

 

[shunkica]

I tested this and indeed the "Block" action does actually reject with "Before Queue Filtering" active.

Maybe renaming "Block" to "Reject" depending on value of "Before Queue Filtering" would be more clear.

Also such emails should be marked as "rejected" in the tracking center, but now they are marked as "blocked".