You can try to unblock yourself using ReCAPTCHA:
This is typically due to making login attempts from a device such as a mobile phones/ipads or email client like Outlook/Thunderbird on a laptop/PC that has an incorrect email address and/or password being used. To protect against a hacker brute forcing into the email account, our firewall blocks the IP of failed logins as a security precaution.
The “Failed cPanel login” block can be triggered two different ways. The first is by making failed login attempts to your cPanel login screen. In this event, we recommend that you reset your cPanel password and verify the username is correct. This firewall block can also be triggered from failed “webmail” logins as well, as the webmail. It is advised to also ensure you’re using the correct email address & password for webmail in addition to cPanel to make sure the block does not continue to happen.
In the event you see a “mod_security” block being triggered, you will need to contact our support. There are many reasons on why a mod_security related block can be triggered, so we’d need to investigate further. The reasons can range from issues with website modules/plugins triggering a SQL injection block to simply too many failed WordPress or Joomla logins.
Please contact our Server Support Team or email us at firstname.lastname@example.org for further information on why the IP Address being Blocked
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