Single account with 2 different SMTP servers

I have my email account configured on my laptop and when I’m at home, I use my Internet connection at home via WiFi to my router. When I’m on the road, I use my wireless 3G card.

The issue is that when I use it at home, in order to send emails, I need to set the SMTP server settings to my “home provider” and when I’m on the road, I need to set it to my “3G provider”. This is quite cumbersome.

Can I configure my mail account with 2 SMTP servers so that I don’t have to change it all the time?