Stalker CommuniGate List for Mac

From CommuniGate Systems:

The CommuniGate-List is a communication module implementing mailing lists and message distribution. The module itself maintains lists information, creating of message digests, and message distribution. Actual message delivery is implemented with the CommuniGate kernel and other CommuniGate modules. Mailing lists used for message distribution can contain E-mail, Fax, Pager and other addresses supported with the CommuniGate system. The List module can maintain several mailing lists simultaneously. Each mailing list can have its own set of options. Since the List module receives all messages via the CommuniGate kernel, data conversions (as MIME decoding) are always performed. The List supports the "feed" operation mode, when each posted message is immediately distributed to all subscribers. List also supports the "digest" operation mode, when posted messages are composed into digests which are sent to the subscribers at specified times. The List supports archiving of digests and retrieving of back issues via E-mail and supports moderated mailing lists. List stores subscription lists as tab-delimited text files. It allows you to create applications that can easily manipulate with mailing lists. List is optimized to process large (multi-thousand subscribers) mailing lists effectively.