Editing a distribution list (correcting an email address in the list)

I created a distribution list with a list of email addresses.  most of them are not contacts - I run a hockey pool so I don’t need them as personal contacts.   I misspelled a couple of their email addresses and now I need to correct them but I can’t find out how to do that

Double-click on the distribution list. If the address is an existing contact, double-clicking on the address in the list will open the contact and you can edit it. If the address is not in your contacts, double-clicking on it will open an edit window where you can alter the address accordingly.