Model: SG310
Firmware version: 9.207-19
I have working Zimbra server, the outgoing and incoming are perfect. Until the company bought the email protection license. I've activated the SMTP proxy with config shown below, but I always got the error "loops back to myself". The incoming mails are working fine.
UTM
Simple Mode
Routing: domain.com.ph (example)
Route by: static host
Host list: Zimbra server
Advanced: Transparent mode
Hostname: mail.domain.com.ph (example)
Everything was default
Traffic selector: Any → Email Messaging → EXTERNAL ISP [MAIL] (Address)
Destination translation: Mail Server Local
Automatic Firewall rule: on
No user created firewall rule.
Zimbra:
Hostname: mail.domain.com.ph (example)
Do I need to point MTA to relay to UTM? Or do I need to do something on this server?
Can you help me out? I'm willing to try everything, our local support also seems doesn't know how to fix it.
Thanks
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