Who is this person, and how did they get access to my email?!?!!

[Ed. Note: This is an email I sent to an old boss inviting her to have drinks with me. Surprisingly, she still went (against her better judgment, no doubt).]

From elvi slives
Sent Tuesday, June 29, 2004 12:07 pm
To T-
Subject elvi slives

You are cordially invited to

Lunch with elvi slives
Former Assistant to T- &
Event Planner Extraordinaire

To discuss life, work, and the pursuit of the perfect diet

RSVP to [redacted]

This invitation is non-transferrable.