Unblock SMTP

New accounts have SMTP sending blocked by default to prevent spam. To unblock your account, you must complete a proof-of-work challenge.

How It Works

  1. Enter your email and password below
  2. Solve the proof-of-work challenge in your browser (or run the shell script offline)
  3. Submit the solution to unblock SMTP

Note: The proof-of-work challenge takes a few seconds to a couple of minutes of CPU time depending on your browser. This is a one-time verification.