This is in a corporate setting with Exchange 2010 SP1. We have roughly 15-20 users that have Droid 2 phones with their company email and such on it. I have one user who is reporting that on occasion, when they send an email from their phone, the email is being resent over and over with a few minutes in between each one. The most recent report of this sent the same email 11 times. It does not do this to every email sent from the phone, only on occasion. I don't believe this is a phone issue, as this user just received a refurbished like new phone from Verizon, and within a week was doing it to him again. I have completely wiped the phone as well as wiped and readded the email account.
Unless any of the users are doing it without others knowing, no one is using Touchdown, or any other email apps, just the standard email app that comes with the phone, and no one else is having any issues.
Does anyone know what would cause this? My suspicion is that the user has downloaded some other apps, and one of them may be interfering with his email.
Edit: I just got some more information. The user said that every time his phone sends the same message multiple times is when he is forwarding an email in his inbox to someone else using his phone. I hope this extra bit of information helps.
Edit 2: Got a little more info. The users standard Outlook shows all of the sent items as well as on the phone. Also, I verified that the recipient is getting the email every time the phone sends it, so they are getting many copies.