1.stalwartlabs / stalwart
All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).
+3,114 stars
from 12,511 · score 8.04
Ranked by Attention Score: stars gained over the last 180 complete days
8 repositories by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)
All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).
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