Can I access a voice memo file that's attached to an email stuck in my iPhone's outbox? Is there a way to access a file that's attached to a message stuck in my iPhone's Outlook outbox, unsent?

I attempted to send two large voice memos to an email recipient as attachments, but the server rejected the email (I suspect due to the size of the attachments) and it remains unsent on my iPhone.

[The original voice memos in my voice memo utility have since been damaged (my fault, long story) and I'd really like to retrieve these two files if possible.]
Although it is a commercial product, iExplorer, can access your iPhone's file system and retrieve almost anything. I believe it has a free trial mode, too.

I'm a satisfied, licensed customer, and have user iExplorer to recover important files otherwise unobtainable. It can even restore data from iTunes backups!