The ovi mail has a good light basic interface without advertisement., but there is still a lot to do.
As a lot of people wrote (me too), the first thing that you can see after clicked on contact is that there is non integration with ovi contact.
The option of the folders has to be improved because there is no possibility to create a subfolder of inbox or sent messages, etc.
The e-mail preferences has no possibility to insert a signature or a message of autoreply if I am out of offices or other conditions.
I would be fine have the possibility to add some rules like move automaticly to a folder some mails etc.
Navio
Nokia E66-1 (218.04) FW 200.21.118
Nokia N95(01.01) V 31.0.017 RM 159