Forum Discussion

JG's avatar
JG
Icon for Cumulonimbus rankCumulonimbus
May 17, 2014

Logging SMTP traffic info via HSL to remote log server.

Our SMTP servers need info about mail messages being sent in order to identify the mail sending devices (and thereby the mail sending users) but are not able to do so due to the use of SNATs on the l...
application delivery
deployment
devops
iRules
LTM
security
JG's avatar
JG
Icon for Cumulonimbus rankCumulonimbus

As the objective is really to stop spamming, a different approach is adopted: instead of logging client information, an irule (with the stream profile) is used to validate the client declared ID through a DNS lookup; those that fail the test will have their connections dropped.

 

The irule is available at An irule to validate client ID via DNS lookup using the stream profile

 

Nikoolayy1's avatar
Nikoolayy1
Icon for MVP rankMVP
Jun 29, 2021

Can you again reshare the link?