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Mailing NAT

Hello,

I have mail server in my lan and a dedicated Internet connection connected to Sophos UTM SG-450. I want to do static natting ( from MAIL-SERVER --> WAN AND from WAN--> MAIL-SERVER). which Natting option do i need to select.

Regards,


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  • DNAT for inbound and SNAT for outbound.  Given your question, I take it that you are not using the SMTP proxy.



    Scott, I have implemented SNAT and DNAT for the Mail server but it is only doing download, no upload. I have attached the screenshot, the last link is used for the mail server.