Dear Team,

Please note some time i try sen emails getting below message. Can you pls check and give me a solution.

An unknown error has occurred.

Subject:

Server Error: 550

Server Response: 550 5.4.6 Unusual sending activity detected. <a href= https://www.zoho.com/mail/help/usage-policy.html target=_blank>Learn more.</a> Use the link mail.zoho.com/UnblockMe to unblock

Server: 'smtp.zoho.com'

Windows Live Mail Error ID: 0x800CCC69

Protocol: SMTP

Port: 465

Secure(SSL): Yes

Above error is showing .

Thks/rgds

SK