06-23-2009 07:56 PM - edited 03-11-2019 08:47 AM
Hello,
I would like to filter spam not to be sent from GPRS users that use our source IP addresses to Internet. I am using Cisco router 2821 as GPRS gateway and router 7206 as our Internet gateway. Does anyone know how to filter spam outgoing from source IP? I would be appreciate for help.
Thanks,
Det
06-29-2009 02:42 PM
Why not just use an access-list to block outgoing port 25?
06-29-2009 02:51 PM
Using an acl will block all e-mails and not just the spam.
You need a content scanning device like a CSC module is on an ASA to scan the contents of any e-mail before sending it out.
In case of a 2811 router here is the link:
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