cbstech wrote:
Sep 12 08:26:22 IREDMAIL-SERVER postfix/smtpd[9359]: NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 450 4.1.2 <****@exchange>: Recipient address rejected: Domain not found; from=<$$$$@iredmail> to=<****@exchange> proto=ESMTP helo=<mail.iredmail>
Postfix verifies the recipient domain before it queues the submitted mail message. Why not just use a valid mail domain name?