I'm using Mac Outlook as my primary email program (my company uses Exchange and it's the "supported" program on Mac), but I've configured Contacts/Calendar to also talk to the Exchange Server.
I like the way Calendar handles alerts, and the fact that it can send email reminders, but I'd need them to be sent via Outlook as I'd rather not have 2 copies of my Exchange Inbox on the disk (to save space).
Is there a way to tell Calendar to use Outlook for outgoing email? For now, it asks me to configure Mail.app every time I set a reminder to send email.