Steps to reproduce:
-Create an e-mail.
-Insert about 100MB worth of large (multi-megabyte) inline images.
-Save the e-mail.
-Open the saved e-mail file.
-Repeat the last step until an OutOfMemoryException occurs.
I understand that it’s inevitable that the amount of available memory runs out at some point, but the application runs out of memory when the operating has a large amount of available memory, as the above screenshot demonstrates.