asgard is a suite of modules based on email workflow.
hermodr (Hermóðr, the messenger) forwards messages from IMAP inbox to another address; it’s designed to be used with hydroxide.
mimir (Mímir, renowned for his knowledge) is a client-side topic-based mailing list and archive; it acts as a mailing list, forwarding messages based on their In-Reply-To header, and stores them in public archive. Best used as a companion to an open source project.
tyr (Týr, valorous and powerful) is an address-based filter; it lets messages pass through if the pair (sender, recipient) is allowed, directs messages to junk if the pair is explicitly not allowed, and sends a notification to sender if the pair is not known.
vor (Vör, associated with wisdom) is a client-side address-based mailing list. It forwards messages sent to a specific address to all interested parties.
eostre (Ēostre, spring goddess) donwloads journal entries in asciidoc and converts them to html.