Interesting. I tried this in Outlook 2013 and got the same results as you did. However, I just tried it for Outlook 2010 and using the Send-To option doesn't work in that the msg attachment name has once again reverted back to its original subject title!
Thank you so much! Right-clicking the file and using Send-To definitely does what the user claims. I will run this by her to see if that is indeed what she have done in the past. Maybe she just had a memory lapse and forgot how she did it!
I hope I can find some closure here on a problem I've been researching! A user "claims" to have been able to drag-n-drop an email from Outlook 2010 onto her desktop, rename the .msg file to a different name than the original subject, attach it to a new email and have that new...