matutolas
asked on
how do i find if there is more than one smtp gateway in my network???
first let me explain how my network is design
internet->router->checkpoi
this is the way how email get to our users. emails should pass thru IMSS to be checked to see if is spam or got any virus, so all the emails the users receives the headears will attach something from IMSS. but i got some users reporting junk emails, so we check the email headears and notice that emails dont pass thru IMSS. so we try to test if is possible to connect from outside directly to bobby and we didnt found way to get in to it. so another possibility is someone from inside the network create a smtp gateway. so i need to find a way to search for it, or if anyone got any ideias.
internet->router->checkpoi
this is the way how email get to our users. emails should pass thru IMSS to be checked to see if is spam or got any virus, so all the emails the users receives the headears will attach something from IMSS. but i got some users reporting junk emails, so we check the email headears and notice that emails dont pass thru IMSS. so we try to test if is possible to connect from outside directly to bobby and we didnt found way to get in to it. so another possibility is someone from inside the network create a smtp gateway. so i need to find a way to search for it, or if anyone got any ideias.
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
I would start at your servers then, and make sure that only the proper services are setup there. You may even have to setup packet sniffers to track this down, using filters so you don't get all the traffic on the wire.. You can analyze the packets (Sending Device) to discover exactly what route they are taking over your network and work backwards from there. Could be a long process..
Thanks, and good luck in your hunt!
FE
FE
ASKER