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
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