I noticed today I cannot send any email from my phone. The emails just get stuck saying "Sending..."
Has anyone had this problem before?
Thanks in advance!
Found the fix: (forgot about step 2 which was causing some confusion)
Go to menu -> Settings -> Applications -> Manage Applications.
Then click menu -> Filter -> All.
Scroll down until you see the Gmail and Gmail Storage. Click both of these and select clear data.
The phone will then resync with Gmail and all should be well.