Starting with Office 2010 (now in 2013), Outlook sometimes (with a certain frequency, randomly it seems) corrupts messages that either we sent to me, or that I already sent, by setting them as an unsent message (they show up as DRAFT unsent messages in the folder where they were saved).

I searched for this problem in the forums and did not locate a similar problem.

Some details:

• Operating in cached mode with a Microsoft Exchange Server 2013 account
  
• I frequently edit messages to remove attachments (on occasion untouched messages also got corrupted)

I suspect the problem has to do with some sort of synchronization problem between the cached and server version of the messages.

Does anyone has it, and even better, has been able to find a fix to stop this behavior, but also to repair the damaged messages?

I found a workaround, albeit a clumsy one. Before a corruption happens, right after I modify the message, I save a copy of it in a placeholder folder, delete the original message and then keep the one in that placeholder folder.

I have not found, though a way to repair already damaged messages (the ones that are in DRAFT / unsent state).

Thanks.
Simao

• Edited by Simão Campos Tuesday, May 19, 2015 6:56 AM

Hi,

Based on the description, the issue that you meet is that some emails become "Draft" and you can't change them back to normal.

I have seen some users say that the same issue was caused by some security softwares, please disable their integration with Outlook, such as "Scan Outlook Emails".

You can also run Outlook in Safe Mode for a while to test if the issue persists:

Press Win + R, type "outlook.exe /safe" in the blank box, press Enter.

If the issue doesn't exist in Outlook Safe Mode, the issue is probably related to some 3rd-party add-ins, disable the suspicious ones to verify which one caused the issue.

Regards,

Melon Chen
TechNet Community Su