I have 3 different zoho email addresses which I use for different email categories. Friends, Finance, Work.

I set them up using three other email addresses as 'primary mail id'

These 3 'primary mail id' addresses will shortly be deleted (because I'm changing internet provider)

Do I have to set up another three 'primary mail id' ?

I was intending just to have 3 zoho accounts and one other hotmail account.

I usually access my zoho emails using thunderbird

Is there a better way of achieving my goal?

Thanks Jon