ISPs urged to block spam

 

ISPs should prevent spam from leaving their networks, says Trend Micro.

Most spam comes from Chinese and Korean IP addresses, but the amount via Polish and French ISPs is close behind, according to security vendor Trend Micro.

Trend’s Dave Rand said ISPs should do more to prevent spam leaving their networks, and should help users by monitoring IP traffic from their PCs and helping them deal with problems caused by trojan horse software. He added that over 80 percent of spam now comes from PCs infected by software that allows unauthorised users to have remote control.

ISPs should block mail from dynamic IP addresses destined for a server using the TCP/IP port 25, said Rand. He added that this port should be used only by proper mail servers with static IP addresses, so such blocking should not affect legitimate email traffic.

Copyright © 2010 IT Week


ISPs urged to block spam
Tags
 
 
 
Top Stories
Westpac interim CIO resigns
Group CIO yet to be appointed.
 
Five emerging technologies that will transform financial services
[Blog post] Far out ideas that aren't far off.
 
Earning the right to innovate
Breaking down the barriers to innovation is a long, but rewarding process, says Bank of Queensland Group CIO, Julie Bale.
 
 
Sign up to receive iTnews email bulletins
   FOLLOW US...
Latest Comments
Polls
What is delaying adoption of public cloud in your organisation?







   |   View results
Lock-in concerns
  27%
 
Application integration concerns
  3%
 
Security and compliance concerns
  28%
 
Unreliable network infrastructure
  9%
 
Data sovereignty concerns
  23%
 
Lack of stakeholder support
  3%
 
Protecting on-premise IT jobs
  5%
 
Difficulty transitioning CapEx budget into OpEx
  3%
TOTAL VOTES: 911

Vote