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FAQ

General Questions

Why are some emails failing with “protocol mismatch”?

Hotmail/Outlook domains require web authentication, not IMAP. Rapid automatically selects the correct protocol, but if you’ve forced IMAP-only mode, these will fail.

What’s the difference between 2FA and locked results?

  • 2FA: Account requires two-factor authentication to access
  • Locked: Account has been disabled or suspended by the provider

Performance

How many threads should I use?

Recommended Thread Counts:

  • 🟢 Starter: 250 threads
  • 🟡 Advanced: 1000 threads
  • 🔴 Extreme: 3000 threads (for power users)

Why is checking slow?

  • Check your proxy quality
  • Reduce thread count if system is overloaded
  • Some providers have rate limits

Can I check multiple lists at once?

Run multiple instances of Rapid with different output directories.

Search Features

What does “search all folders” do?

Instead of just searching INBOX, it searches all email folders (Sent, Drafts, Spam, etc.) for your query.

Are searches case-sensitive?

Email searches are typically case-insensitive, but this depends on the email server.

Proxies

Which proxy type is best?

SOCKS5 offers the best compatibility. HTTP proxies work but may have limitations.

Do I need proxies?

  • IMAP: Works fastest without proxies, but some servers may block direct connections
  • Web protocols: Always require proxies due to rate limiting

Why are my proxies failing?

Most proxy providers don’t support IMAP protocol! See our comprehensive proxy guide for detailed troubleshooting.

What’s the “proxy error” message mean?

Usually means your proxy provider blocks IMAP connections. Contact their support to confirm IMAP protocol support.

Web.de Specific

Is the captcha solver really free?

Yes, Rapid includes a free AI-powered captcha solver running on our servers. It automatically solves Web.de captchas without requiring API keys or payments.

Why is Web.de slower than other providers?

Web.de requires captcha solving for each login, which adds processing time.

Output Files

Cookies from web authentication providers (Hotmail, GMX, Web.de) can be imported into browsers or other tools for continued access.

Can I resume interrupted checking?

Remove already-checked emails from your input file and run again.