Choosing an email address to send external invitations or emails from.

When sending meeting invites or letter templates from Daylite, the program will utilize the account you have currently selected in Apple Mail.

Before creating a meeting invite or sending an email from Daylite, open Apple Mail and select the Inbox of the account you wish to use:

Additionally, you can check to see which account is selected in the "send new messages from" section in Apple Mail -> Settings -> Composing.

If "Automatically select best account" is picked, Mail will choose the email for you, however, you can specify a default account you would like to send emails from moving forward.