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Allow email relay for internal and remote servers

Hi,

I need to allow some internal and remote servers which are connected through IPsec to be able to send emails through the XG firewall configured as MTA. I entered the servers' IP addresses under e-mail relay but it is not working and showing a message "550 Relay not permitted". Is there anything else I need to do to allow it?

Thanks.

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0 Prism over 3 years ago

Hello,

DId you allow SMTP Relay for the "VPN" Interface? (This option is available at the "Administration" over the left panel, then inside the "Device Access" Tab.)

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0 CreateShare over 3 years ago in reply to Prism

Yes, it is not working even after enabling it.
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0 CreateShare over 3 years ago in reply to Prism

Just found out that the relay is working for the IPSec connections which are using Cyberoam instead of Sophos at the remote site.
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0 CreateShare over 3 years ago in reply to Prism

seems there is some problem with either firewall or natting rules. Which IP should I enter in packet capture to troubleshoot?
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