IMAPFilter is a mail filtering utility. It connects to remote mail servers using the Internet Message Access Protocol (IMAP), sends searching queries to the server and processes mailboxes based on the results. It can be used to delete, copy, move, flag, etc. messages residing in mailboxes at the same or different mail servers. The 4rev1 and 4 versions of the IMAP protocol are supported.

IMAPFilter uses the Lua programming language as a configuration and extension language.

IMPACT: This bug leads users to believe their credential or authentication methods are wrong when in fact the "wrong password" error is unrelated. This in turn leads to waste of time troubleshooting credentials and auth. methods. Low level logs show the actual problem.