[x51v] gMail downloads emails which *I* sent. Any way to prevent this?

Hi all,

So I setup gMail using the messaging application on my x51v. Everything is great, but I really don't like that every email which *I* sent using the web-client has been downloaded into my inbox. Any way to prevent such things from happening in the future?

Also, is it possible to setup some rules like in MS Outlook/Express? Or should I look for another mail application such as WebIs Mail?

Thanks!

Shameless bump.