To resolve the error when sending emails from BUSY, you can try the following steps:
1. Check your internet connection to ensure it is stable.
2. Verify that the email settings in BUSY are correctly configured.
3. Make sure you have entered the correct SMTP server details, including the server address, port number, and authentication credentials.
4. Check if your antivirus or firewall settings are blocking the email sending process. Temporarily disable them and try sending the email again.
5. If the issue persists, contact BUSY support for further assistance.