I thought it might be helpful to relay what steps I took to post my introduction, so others can learn from my mistake. I went in my email and found the message that had the link to the page where we subscribed to the list. I went back to that page because I had read earlier the part that said:
"To post a message to all the list members, send email to eg_commun...@list.larl.org<mailto:eg_commun...@list.larl.org>." The problem was when I clicked on the link it automatically sends up an email window that is the default email account on the computer. In my case, it was the dlreference account, and I didn't notice that information, and I sent it quick so I could help the patron/customer that walked up. The moral of the story: don't work on Evergreen at the reference desk in-between the interruptions. Sorry for the trouble Josh!