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Forum Discussion

vvskaladhar_488's avatar
vvskaladhar_488
Icon for Nimbostratus rankNimbostratus
Oct 19, 2015

How to insert-f orwarder for port 25

HI All,   I have exchange setup in my environment with SNATAUTOMAP . we see for port 25 there are lot of spam mails in exchange but unable to identify source as we use SNAT. we dont do ssl offload...
Kevin_Stewart's avatar
Kevin_Stewart
Icon for Employee rankEmployee
Oct 19, 2015

The point I'm making is that while you can inject additional information into SMTP payload data, you'll be hard pressed on the server side (the email servers) to actually read and understand that data without some amount of customization. In lieu of that you're very best option is to configure the environment so that you don't have to SNAT the traffic.