Why won't gmail messages leave my Q10 outbox?

outgoing messages just sit in outbox

Do you have data service? from your carrier?

Go to Settings > Accounts and select your Gmail account. Ensure that your SMTP server address is smtp.gmail.com, is using port 465, and smtp encryption is set as "SSL" from the drop down. Save and eit. After a reboot, wait a few minutes the send a test email to check.