I have a Cisco PIX 501 firewall and have been blacklisted because people are able to spam from my email server. How can I configure the firewall so that people cannot use my email server to send spam?
closed as off-topic by TheCleaner, Dave M, Tim Howland, Scott Pack, dawud Oct 11 '13 at 6:57
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions must demonstrate a minimal understanding of the problem being solved. Try including attempted solutions, why they didn't work, and the expected results. See How can I ask better questions on Server Fault? for further guidance." – TheCleaner, Dave M, Tim Howland, Scott Pack, dawud
Configure it to block all email. If you want to keep using email from inside the PIX, you'll need to fix the problem on the mail server and leave the PIX alone.