For further technical details or to explore alternative tools like the Outlook N Express Email Extractor
| Error Code | Message | Solution | | :--- | :--- | :--- | | | "Proxy timeout after 24s" | Increase timeout in Settings > Network to 45s. | | E-209 | "Regex overflow on line 544" | Your input keyword contains special characters. Clean the keyword list. | | E-404 | "SMTP verification refused" | The target mail server rejects RCPT TO commands. Disable verification for that domain. | | E-777 | "Memory allocation failed" | You are using 32-bit OS. Switch to 64-bit or reduce max URLs to 5,000. | Beijing Express Email Extractor V3.6 24