A catch-all alias is an email account that will catch any email sent to a non-existent email address under your domain name. Instead of bouncing the email back to the sender, it will store the email into the account that is assigned as the catch-all account.
Some hosting companies do not support the catch-all alias. The catch-all alias allows spammers to send unsolicited emails to random email addresses. This creates stress on the mail servers, slowing down the mail server's normal functionality.
Some hosting companies do not support the catch-all alias. The catch-all alias allows spammers to send unsolicited emails to random email addresses. This creates stress on the mail servers, slowing down the mail server's normal functionality.