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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.
MailPing monitors SMTP mail hubs and relays from a user's point
of view by sending SMTP messages to the servers that it monitors, looking for
the messages to come back (and notifies if they don't), and calculates
round trip times.
Phasault is a EMail Tool-Client, which provides some features you can't see in other E-mail Clients. Coded in Python using Tk as GUI. Works in Win32 and Unix/Linux (with python interpreter installed), and also planning to create stand-alone distribution o
eXtremail manager is a php based SMTP/POP server manager. Specificly for the eXtremail server. It offers the server admin many ways to monitor server activity and add/edit/delete users and domains.