Mcaster1ListCaster
A self-hosted, LISTSERV-style mailing-list and newsgroup-style discussion server. Email and web subscribe with double opt-in, classic email commands, member-to-member discussion lists, moderation, and one-click unsubscribe — multi-domain from a single install.
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Subscribe & double opt-in
Web and email subscribe, each confirmed by a one-click opt-in link before any mail is sent.
Classic email commands
SUBSCRIBE, SIGNOFF, SET, REVIEW, QUERY, LISTS and HELP, processed from a polled mailbox just like the list servers of old.
Discussion lists
Members email the list address and the message fans out to every subscriber; replies return to the group like a newsgroup.
Moderation
A held-post queue with approve / reject for moderated lists, plus owner and editor roles.
Subscriber options
Per-member no-mail, conceal, no-post and acknowledge settings, from the web UI or by email.
One-click unsubscribe
RFC 8058 one-click unsubscribe with per-list suppression, on every message.
Content & attachment filters
Inbound posts are checked against size, attachment-type and keyword policy before distribution.
Rate-limited delivery
A queue worker staggers sending to respect provider limits, with health metrics and per-list reports.
Multi-domain
Per-domain lists from one install, with a public list directory for each domain.