[SOLVED] Solved!!!! Relay Access Denied Issue with Zimbra (554 5.7.1 Error)

Oct 26, 2019
Dear Friends/Support,

Today onwards I started evaulating Proxmox v.6.0 .Now I am facing a Relay issue.

Zimbra Server IP AA:AA:AA:AA (LAN)

PMG IP BB.BB.BB.BB( Same LAN as Zimbra server)

My issue is when users from Zimbra server sending emails to outside domains through Proxmox Gateway its not going through and ,in the syslogs its showing as follows.

NOQUEUE: reject: RCPT 554 5.7.1 Relay Access Denied

But I set all our domains in Relay domains section and added Zimbra server ip and its network in Networks section of Configuration --> Mailproxy interface of PMG

And users getting bounce back messages as follows.

<XXXX@gmail.com>: host BB.BB.BB.BB[PMG internal IP] said: 554 5.7.1
<XXXX@gmail.com>: Relay access denied (in reply to RCPT TO command)

What could be the reason for the above issue. No issue in receiving emails from outside to the internal domains

Please help ..

Looks like you do not connect to "internal SMTP" port.

=> check your network/port settings
Looks like you do not connect to "internal SMTP" port.

=> check your network/port settings

Dear Tom,

Thank you and it helped me.

Actually at Zimbra I set the failback relay as Proxmox Gateway IP itself without setting the port.So may be ZImbra called that ip and sent the email to 25 port which caued the Relay Access Denied eror.

Tons of thanks for your kind help.



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