We have a pre-set limit of 3600 emails per hour. This limit is in place mainly to protect us from accounts that get hijacked or from sites that get hacked. You must wait an hour to be able to send e-mails again or contact us.
If you are not aware that your account is sending mass emails, it is possible that it has been compromised and we recommend that you change your e-mail password immediately.
If the e-mail account is used to send emails from your website, it is possible that it has been infected by a script that’s sending out SPAM.