To ensure you stay off Zoho’s blacklist, follow these best practices:
Automated scripts or "bot-like" behavior detected on your account.
If you have been blocked from sending emails through Zoho Mail, you are likely seeing a message stating your account has been disabled for "exceeding limits" or "Spam/Unusual activity." This guide will help you understand why this happened and provide the exact steps to restore your service. Why Zoho Blocks Accounts