Mail: Select SMTP server automatically on addressee

I have two SMTP servers configured in Mail. One for school, and one for my private email. I would like that Mail automatically picks the one for school if I'm sending an email to someone of my school. This means: any email address of someone of my university ends in @ugent.be. So if I write an email to xyz@ugent.be, I want mail to pick my UGent SMTP server. In all other cases, I want to use my gmail SMTP server configuration. Is this possible? If not, are there any applications that support this feature? (Some people on the university are very strict and won't reply unless you sent the email from your university email address. And I like it separated nicely as well.)