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Forum Discussion

kingmuir_152188's avatar
kingmuir_152188
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May 08, 2014

GTM exchange SMTP..

Quick one, will a GTM device pass through the originator ip address to the relay server by default?  
BIG-IP DNS
Cory_50405's avatar
Cory_50405
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May 08, 2014

No. The DNS query to GTM will be completely independent to the subsequent data connection by the client over SMTP.

 

Cory_50405's avatar
Cory_50405
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May 08, 2014
There was another thread about this same issue yesterday: https://devcentral.f5.com/s/feed/0D51T00006j3sF1SAI Unless the SMTP server is configured to route through the LTM to reach the connecting clients, then it won't be able to grab the client IP address due to SNAT on the LTM.