Hi!
We got an error message while sending e-mails today. Tried to google it but couldn't find how to resolve the issue.
ERROR CODE :550 - 5.7.1 Our system has detected an unusual rate of unsolicited mail originating from your IP address. To protect our users from spam, mail sent from your IP address has been blocked. (7FCD7463-3CC4-4465-8A1B-B636A092FCDA.1)