This may not be specifically a problem with ISPConfig but I am using ISPConfig and I'm sure someone here will know the answer to this. I have an alias setup and point it to an actual mailbox. I enabled the "send as" checkbox in ISPConfig. Wondering how I would send as this alias... I use roundcube. Logged into Roundcube and added another identity for the alias. It seems to work, however I can add any address I want as another identity even non existent ones and they still send. The headers of the email always show: Received: from mydomain.com (localhost [127.0.0.1]) (Authenticated sender: [email protected]) The From address will still show as the alias or non-existent address. Questions are: is this the correct way to send from an alias? Is there a way to lock down postfix so that it will not allow sending emails for non-existent or aliases that are not linked to the account you are authenticated as? Thanks in advance
It is probably a bit late, but for the others: Yes Activate: System -> Server Config -> Mail -> Reject sender and login mismatch
Thanks! That worked... For some reason though when I first toggled the setting and waited for the cron to update the settings it didnt work... I toggled the setting back off and compared both versions of my main.cf file (from when the setting was on, and turned back off). Strangely both files were identical... I toggled the setting back on and viola it worked as expected and diff reported that the files now had some differences... Not sure why it didn't update initially....
