sent mail keeps sending

[SDCB]

If I send an email from the phone using an Outlook account, the sent mail shows repeatedly (sent every 10 minutes or so) in my host sent file till I delete the original mail (longest is over 80 times over 3 days). The recipient only gets it once and it only shows once on the phone. ANy ideas? More to the point is this using up valuble contract data?

[Johan]

Have you tried to delete the account then add it again?

You could also try to clear data for the E-mail application (this will also delete the account settings).

Settings > App's > All > E-mail > Clear data.

Have you tried using their dedicated E-mail app from Google Play store?