[quote user="cas2904"]Will this work with Zimbra Mobile?[/QUOTE]
Wow, phonescoop didn't even have this one :)
It appears the phone is Symbian 9.1, according to the Mobile docs, you need a S60/S80 Symbian device (a la Nokia E series). Your device however does support Blackberry Connect, so it MAY in fact work with the use of Notify. This appears to be outside of the realm of support, but might be worth tinkering with.
For those that are interested Engadget had info on this device (http://www.engadget.com/2006/02/06/sony-ericssons-m600-3g-tri-band-gsm-cellphone