Error "policy violation" - abused account

You read this article probably, because you have tried to send an email via smtp server and such error was displayed
550 5.1.0 cNkj1y0022zrrQM01NkjaD policy violation, see
The error was caused with emails sent from your email account to the domain used by spammers.
Almost certainly, your email account was abused by spammers.
For more details about unblocking of your account, contact our customer support with an authorized ticket on or with a chat on