Catch-all is an email service provider (ESP) that will “catch” any incoming mail to nonexistent email addresses (alias not existing@Brand.tld) on that particular domain, in order to have this in only one Inbox for your GSA or RankerX.
For example, if your catch-all address for receiving confirmations for new accounts is “catch@yourdomain.tld,” you could create an account under different names and receive all emails sent to that address in one inbox.
Buy this way, you can create as many accounts as you need 100Ks of email accounts for a particular site using “fake” email addresses and confirm all of them by using just one real email address which you will never use it.
