I'm trying to setup a KYOCERA FS1128MFP unit so I can scan to e-mail. It seems to be coming down to authentication issues, as shown here in the zimbra.log
Sep 24 11:07:27 zimbra-vm01 postfix/smtpd: NOQUEUE: reject: RCPT from <removed> 554 5.7.1 <email@example.com>: Relay access denied; from=<firstname.lastname@example.org> to=<email@example.com> proto=ESMTP helo=<KM469920>
I'm guessing if I added the public IP to the MTA it would work, but I'm just testing this configuration so one of our customers can use it. Do I have to maintain the MTA for this or is there another way?
I have POP and POP over SSL enabled, over clear text is not currently enabled and I would prefer not to enable that.
Any tips are appreciated