| Are you refering to private email? Get a gmail account, it has by far the best spam filter, i get about 12 spam emails a day and i have never had a single one, in 3 years, get into my inbox, they go into a spam folder and are automatically deleted each month.
If we are talking about a business account, we use spamsoap it's very good too, but it's definitions of spam are almost too strong, some actual work emails get blocked so we have to check each day to see that nothing work related got blocked. |