JFetch is an application to download your email
through protocols like POP3 and IMAP. The decision
of whether to download a mail or not is made
through a sequence of filters. By implementing
certain interfaces, a user can very easily add
his/her own filter to the current set of provided
filters. Examples of filters are spam control,
size restrictions, etc. JFetch downloads the email
if it matches the criteria and then can deliver it
using one of its delivery options.