Reputation Filtering

[ironport_dave_ironport]

Hi,
Im installing an eval Ironport behind a current 3rd party MTA, which will relay all mail onto Ironport.
My query is- can someone advise if this will affect reputation filtering, the fact Ironport receives mail from an internal address? And how best can i get around this issue?
Cheers :)

[walkermc_ironport]

You can use the Ironport Incoming Relays feature to get around this.

Basically you specify how may hops back in the header to look for the ACTUAL sender IP. This works if the number of hops is always going to be consistent.

If the hops aren't a consistent predictable number then you will have to insert a custom header at your third party MTA if possible.

This is all documented in the Basic User Guide, or online here: https://support.ironport.com/docs/c_series/5.1/HTML_5.1_Compilation/Basic_Guide/wwhelp/wwhimpl/common/html/wwhelp.htm?context=Basic_Guide&file=antispam.14.5.html

:-)

[ironport_dave_ironport]

thanks walkermc :)