You might have got frustrated when the error code 550 appears on your Zoho mail. Don't panic! These errors can be quickly resolved by following the quick and the most straightforward methods mentioned on this page. Before proceeding to the troubleshooting steps, understand what's Zoho mail error 550 and the causes of such an error. Zoho mail error code 550 --- it’s an SMTP (Simple Mail Transfer Protocol) error code that occurs when a spam folder blocks a message from reaching the recipient or when the recipient's email server blocks the email. The error is also called SMTP error code 550.
The Error Occurs Mainly Because:
Method 1: Rechecking The Zoho Mail
Method 2: Change Your Outgoing Mail Port
Check the email application. If you're using port 25 as the outgoing port, there are possibilities for the server to block the email as spam. Change your port to 26, 465, 587, or 2525.
Method 3: Enable SMTP (for Outlook email client)
If the Zoho mail error 550 issue persists or If you're stuck anywhere in between, then contact our technical team for further guidance.