problem with mail magnet on secondary account

problem with mail magnet on secondary account

I have the zoho account and a gmail account setup in zoho mail.  Only the zoho account emails are showing up on mail magnet.  How do I get my secondary gmail account mail to show up under mail magnet.  I changed the default account to my gmail account but still only the zoho account emails are listed on the mail magnet tab.  How do I change this??