[Evolution] changing smtp port 25 to 5025

[Alain Henry <alain henry gmail com>]

Hello,
I have problems sending e-mails using Evolution.  My service provider
tells me that I could try changing smtp port 25 to 5025 in my mail
client.  I searched, but did not find where to change that in
Evolution.  Can someone point where to look?
(Using Evolution 2.2.1.1 on Ubuntu 5.04)
Thanks
Alain