The twit filter allows you to ignore posts by spammers and other annoying posters. If the "From" line in an article matches any of the rules in twits.txt, the article is ignored.
The filter rules have the same format as search and filter strings. Each can be as simple as an email address or it can contain logical operators AND, OR and NOT as well as wildcards. See Search Strings for further information.
*@spamco.com - filters all articles from the spamco.com domain.
(tom or steve) and "@spampalace.net" - filters articles from either steve or tom at the spampalace.net domain.
"email@example.com" - filters articles from the user firstname.lastname@example.org