David Clark-Bell

London, UK

IT Manager for SME

I believe Telewest is good for consumers because it’s fast and “new” connection (that doesn’t reply on BT lines. But for businesses watch out! Telewest lines have several disadvantages: 1: no real fixed IP address (all you get is a l0ong lease off their DHCP system, 2: no reverse lookup on that IP address so your email system can respond to reverse lookups from AOL and other anti-spam systems, 3: All of Telewest network IP’s are classified as spamming open relays. The blacklists produced by the Spam Prevention Early Warning System (Spews) are used by many organisations as a way to filter e-mail. This started back in May of 2005 and by December Telewest does not have a fix nor will the “block” their customer’s’ offending ports (port 25). Nildram did notify it’s customers that it would block port 25 and you had the change to register your use of the port and they have dealt with the problem three years ago. But Telewest is not solving their problems. So businesses beware.