[SOLVED] Relay Access Denied Issue

anhtung19x9

New Member
Oct 24, 2019
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I tried to send mail from zimbra mail on AWS with IP publlic to PMG on my Company with IP Public. Below is example about my case:


Zimbra Public IP: B.B.B.B (mail.zimbra-example.com)
PMG Public IP: A.A.A.A



I set in my zimbra:

relay host: A.A.A.A
port: 26


My PMG mail proxy settings:

Default Relay: B.B.B.B
SMTP Port: 25
Disable MX Lookup: no
Smarthost: none

Relay Domain:
zimbra-example.com

Extenal SMTP Port: 25
Internal SMTP Port: 26

Transport: not setting

Network: B.B.B.B/32



but when I tried to send mail from zimbra to PMG, It always bounded and have error: Relay access denied (in reply to RCPT TO command)

Others setting still default. Please have me fix it