#5.5.0 Smtp Looks Like Spam Or Phish Why Do I Get This Error When Sending Emails From My Work Email Account???

Why do I get this error when sending emails from my work email account??? - #5.5.0 smtp looks like spam or phish

SMTP communication problem with the address of the server. Contact your system administrator.

\\ \\ \\ \\ \\ \\ \\ \\ U0026lt; mydomain.com # 5.5.0 smtp; 550 block of filtering options for the recipients of spam.

Please help