The catchall feature is referred to as "default address." in cpanel. This feature will allow all misaddressed or misrouted emails to be sent to a specific email address rather than get bounced.
you must be sure while setting up the email address as this will increase the possibility of spam compromise.
The steps are as follows to set email address to forward unrouted emails to specific email address :
1) Login to your Cpanel account.
2) Select "Default Address" from section "Mail".
3) Select your domain, check option "Forward to Email Address" and enter email address.
4) Click on "Change".
Note :- E-Mail/Catch-All feature is disabled by default due to spam and security concerns.