ISP Filtering

At first glance using an ISP (Internet Service Provider) which filters out all spam looks like the obvious solution to the spam problem, but think carefully. Would you really be happy giving your postman/woman a few instructions and leaving them to decide which of your letters should be delivered? In effect, that's what leaving it all to your ISP entails.


No ISP filtering system can ever be 100% efficient. Due to the ingenuity of the spammers, some spam will inevitably still creep through. More seriously, you risk having some mail you actually want to receive blocked by the ISP filter. When the British parliament recently introduced a filtering system for its own e-mail, over 800 messages to MPs were blocked in the first week, including many legitimate  ones concerning the forthcoming Sexual Offences Bill.

If you want to block most spam with the minimum of hassle and don't mind risking the loss of a few genuine e-mails, using an ISP which offers spam filtering could be the solution for you. However, because most ISPs adopt an across-the-board policy with their filters, you will generally have to go along with their definition of what does and doesn't constitute spam. Below I have listed a few of the leading ISPs which offer spam filtering as part of their service. Any other suggestions would be welcome - please use the e-mail address on the Contact Me page.

USA

UK


Postscript: Click Here to read an article on the problems caused for AT&T's customers by the introduction of a new spam filtering service.