When you sign up for Etsy you need an email associated with it. To do multiple shops you need multiple email accounts- you can’t use the same email account.
So how can you keep track of your mail from more than one account?
Especially if you have accounts from various places, ie. google, yahoo, hotmail, etc?
One method I have found that works nicely for me is Mozilla Thunderbird!
“Software made to make email easier. Thunderbird is a free email application that’s easy to set up and customize – and it’s loaded with great features!”