Cannot create a new user or send an email [Unusual activity detected from this IP. Please try again after some time.]

Cannot create a new user or send an email [Unusual activity detected from this IP. Please try again after some time.]

Hello support.

I couldn't create a new user. I'm trying to work around an ongoing problem, basically I was blocked from sending new emails which I'm dependent on it for the moment as I'm out reaching for collaborations with professionals.

In need for help
Thank you
Ahmad