gmailiphonemail.app
I have a gmail account connected via IMAP to the iPhone 4. For some reason it shows a folder named "starred" which I cannot delete, move, nor find via the web interface in gmail. Can anyone tell me how to get rid of it?
Edit: in the properties of gmail, I have unchecked both "Important" and "Marked" folders via visible in IMAP, but that had no impact. Same goes for "All Mails", which I also cannot get rid of.
Have you tried selecting the folder in the folder list and then using the menu entry "Use This Mailbox For -> Sent" in the Mailbox menu?
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That should do exactly what you want.
Unfortunately, there's not a way of doing it with the native iOS app. Try using the Gmail app (which I personally prefer). If not, there's this little workaround: http://red66.com/2009/07/how-to-send-group-emails-from-your-iphone/
The gist of the workaround is to make one contact for the group and add a comma separated list of emails to the singular email field for the "group contact"
This doesn't allow you to leverage arbitrary groups and does require some manual setup, but once that's done you can email limited group sizes from iOS without needing a computer.
Best Answer
The starred folder is used for flagged e-mails. If you don't want this folder to show up in the mail.app you have to change the preferences directly in the Gmail web interface.
Go to preferences and choose the label tab. There you can uncheck show in IMAP. After the next synchronization, the folder should be gone.