My account outgoing mail is block

Hello Sir,

From my account outgoing mail is block can you please give me steps how to unblock it.

There is one link on message :: https://www.zoho.com/mail/help/usage-policy.html#alink1

User : hardik@craigigs.com

Can you do it from your end or give me steps for it. It's an urgent so please help me.

Thanks in advanced.