[Plugin: Private Messages For WordPress] wrong recipient

Very useful plugin, thanks! I noticed some minor bugs:
If I use auto-completion for the recipients and after entering a recipient delete it again and enter another recipient, the message still shows after sending the first recipient in the outbox list.
After sending the message it shows “2 messages sent.”
Emails don’t arrive. Might try the fix suggested by seand11.

https://www.ads-software.com/extend/plugins/private-messages-for-wordpress/