Brent Gardner wrote:
I'm running qmailtoaster on a box that acts as a spam/virus filter for our Exchange server.Any message that is not rejected by the various tests on the toaster, and that is addressed to an address on our domain, is forwarded to the Exchange server.There are no local mailboxes on the toaster outside of the default admin accounts.Currently messages forward on to the Exchange server are bounced by the Exchange server if they don't match an account on our domain. Many such messages are designed to bounce spam off of the server with a forged 'from' address.I would like to configure the toaster to 5xx reject mail sent to non-existant addresses on our domain during the initial SMTP conversation with the toaster.It's simple for me to export a list of valid addresses from our Windows domain. Is there a place where I can put these addresses in qmailtoaster so that a message sent to an address not on the list is 5xx rejected by the toaster, not forwarded on?Thanks.
The only way I have seen this done successfully so far has been to create all of the email addresses onto the Toaster machine, then configure Exchange to poll the messages from there. Otherwise there's no good way for Toaster (or Qmail in general) to know if the emails are valid or not.
smime.p7s
Description: S/MIME Cryptographic Signature
