Klementine

Klementine is a software program that provides remote mail retrieval, filtering, and forwarding. It is coded in Java and comes with several features that make it a popular choice among users. For instance, the program allows users to apply regular expressions to mail header fields, which can help to identify and classify messages as spam or ham. If any spam mail is identified, it is deleted directly from the server.

Klementine is particularly useful for people who use dialup connections to retrieve their mail. It allows users to connect to multiple accounts and utilizes multithreaded account processing, which ensures fast mail retrieval. The application also has intelligent rules that can be used to filter emails according to different criteria.

Users can use the email addresses book from an LDAP server as a whitelist, and there is a postpone rule for mails that do not match any other rule. The program's configuration files are easy to modify using scripts. The hit statistic report helps users to analyze their mail traffic effectively, and the logging is sophisticated and done through log4j.

Klementine supports input protocols such as IMAP and POP3, while the output protocols include STDOUT and SMTP (Port 25). The latest version of Klementine fixed a bug that caused the application to terminate unreliably.