To verify your domain name contact information: Video
ICANN requires that all domain owners keep their contact information up to date. They periodically send out a verification email to the "admin" contact email on file. If that email is NOT verified, ICANN will suspend domain registration services. Hostica will do our best to help you keep this information valid and below are instructions for how to update your contact email in case you cannot or did not receive the ICANN verification email sent previously. Once contact email has been updated, please notify us to resend the verification email (if your domain name still needs to be verified for ICANN.)
Therefore, it is important to ALWAYS keep the domain owner contact email valid for the duration of the life of the domain name.