After registration on hosting or change mail account an email is automatically sent to the mail containing a link to confirm it.
Until the mail is confirmed, in all sections control panels the following warning will be displayed:
To confirm your mail, you need to find a letter in your mailbox with the subject “Account confirmation", Open it and follow the link from it:
After clicking on the link, in case of successful confirmation, the following notification will be displayed in the lower right corner:
After that, the warning about unconfirmed mail will disappear from control panels.
The reasons for the problem may be different: for example, the email client or browser used is cutting off the link that should be followed, or authorization has not been completed in the account whose mail needs to be confirmed.
In this case, try the following: