In denial
I love how she finds the "allegations disappointing". You can almost hear her mumbling to herself:
"Oh, I'm going to send this email which I will later regret doing...
Oh, it's so bad I can't believe I've done it!
I will now convince myself that it wasn't my email at all!
It's not mine! It's not mine! It's not mine! It's not mine!
Ah, what do you mean it's mine??!
OMG! I'M SO DISAPPOINTED!!"