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Stop vibe-debugging.
Plug Claude into your app's actual errors.
AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
Mailster is a project aimed at testing software mail capabilities. It provides a mail server container to test emails sent by your apps without rewriting your application code.
GeoMail is an bundle of freebsd with postfix, postgres, cyrus imap, amavisd, openldap, apache, horde (and apps) with a "handy-dandy (tm)" install cd :)