I just had to figure out how to do this again and it was confusing, so I figured I'd post it to help people out.
A while back on my Focus I noticed that when I would delete emails, they wouldn't show up in the trash on Gmail. I believe this has to do with the general philosophy behind Gmail in that email archival takes precedence over deletion. So, by default, when you delete mail, it gets archived (essentially the inbox label gets taken off and you can find those messages in All Mail instead of Inbox in Gmail) instead of sent to trash. Seems like it's that way on other platforms too, but I think iOS added an option for deletion/archival in iOS5.
That happens to drive me nuts because if I think it's worthy of trash, I never want to see it again. To fix this behavior, on your phone, go to m.google.com and you'll see a list of mobile products. Select the Sync product.
Within Sync, you'll see a list of devices. This page seems a little buggy in that I've never figured out how to delete an old device and identifying devices seems to be a little tricky. If you've only got one Windows Phone, it's pretty easy. If you have multiples or have had multiples, it can get a little confusing (I've had the Dell Venue Pro, Focus and now the L900). They're all listed as Windows Phone. The way you tell them apart is by the "Last sync" date, which is not the date that gmail last synced with that device, but instead when that device was first hooked up to Google services.
Select the device you want to change, and you'll see options for enabling send mail as as well as, delete email as trash. There are also options for syncing additional calendars within there as well, as I don't think it does it by default.
Kind of dumb that the "fix" is so hard to find (and not very well published either), but there it is. I hope that saves someone else from the many hours of frustration I had.
A while back on my Focus I noticed that when I would delete emails, they wouldn't show up in the trash on Gmail. I believe this has to do with the general philosophy behind Gmail in that email archival takes precedence over deletion. So, by default, when you delete mail, it gets archived (essentially the inbox label gets taken off and you can find those messages in All Mail instead of Inbox in Gmail) instead of sent to trash. Seems like it's that way on other platforms too, but I think iOS added an option for deletion/archival in iOS5.
That happens to drive me nuts because if I think it's worthy of trash, I never want to see it again. To fix this behavior, on your phone, go to m.google.com and you'll see a list of mobile products. Select the Sync product.
Within Sync, you'll see a list of devices. This page seems a little buggy in that I've never figured out how to delete an old device and identifying devices seems to be a little tricky. If you've only got one Windows Phone, it's pretty easy. If you have multiples or have had multiples, it can get a little confusing (I've had the Dell Venue Pro, Focus and now the L900). They're all listed as Windows Phone. The way you tell them apart is by the "Last sync" date, which is not the date that gmail last synced with that device, but instead when that device was first hooked up to Google services.
Select the device you want to change, and you'll see options for enabling send mail as as well as, delete email as trash. There are also options for syncing additional calendars within there as well, as I don't think it does it by default.
Kind of dumb that the "fix" is so hard to find (and not very well published either), but there it is. I hope that saves someone else from the many hours of frustration I had.