Assume that you're using Microsoft Outlook to either reply to a message or forward a message that's sent from one of the following environments:
Note This issue also occurs in posted items in public folders.
- Microsoft Exchange Server 2013
- Microsoft Exchange Server 2010 Service Pack 1 (SP1) or Exchange Server 2010 Service Pack 2 (SP2)
- Microsoft Exchange Online in Office 365
- The display name of the sender
- The display name of the recipients
- The subject of the message
- The file name of an attachment
- The message body
Note This issue also occurs in posted items in public folders.