Opt-In List Filter allows to filter and clean lists of emails, URLs, contacts, etc.
You can enter several filter rules which will be applied to the source list.
There are two types of the filtering rules: Keep and Exclude.
Filtering rule can be applied to the whole line or to a part of line:
email, username, domain, column 1, ..., column 10.
You can use any of the following match operations in a rule:
"equals", "does not equal",
"contains", "does not contain",
"starts with", "does not start with",
"ends with","does not end with",
"mathes regexp", "does not match regexp",
"matches wildcard", "does not match wildcard".
You can specify a constant Rule's Expression (string) or a file with expressions
(for example list of domains to remove).