nanog mailing list archives
SMTP Port Blocking: Success or Failure?
From: "Claydon, Tom" <Tom.Claydon () DobsonTelco net>
Date: Sat, 26 Feb 2005 19:04:26 -0600
We are considering filtering outbound SMTP traffic from our ISP customers, except from our own mail servers, to help reduce the amount of spam originating from our network. How successful/unsucessful has implementing outbound SMTP filtering done in stopping or slowing down spam from your network? Also, if outbound SMTP filtering has not worked for you, are there any other things that you have implemented that have helped with spam traffic? Thanks, = TC -- Tom Claydon, IT/ATM Network Engineer Dobson Telephone Company http://www.dobsonteleco.com
Current thread:
- SMTP Port Blocking: Success or Failure? Claydon, Tom (Feb 26)
- Re: SMTP Port Blocking: Success or Failure? Christopher L. Morrow (Feb 26)
- Re: SMTP Port Blocking: Success or Failure? Ketil Froyn (Feb 27)
- Re: SMTP Port Blocking: Success or Failure? John Levine (Feb 27)
- Re: SMTP Port Blocking: Success or Failure? Stephen Fulton (Feb 28)