Hi, Elle, thanks for the response.
I am running OS X 10.9.1 on a MacBook Pro.
First of all, when I try to go online to my DreamHost mailbox using my email client, I get an error message "The identity of mail.sapoe.org [sapoe.org is my organization name] cannot be identified. An SSL error has occurred and a secure connection to the server cannot be made."
My choices then are "open connection doctor", "stay offline", or "take all accounts online".
If I select "open connection doctor" the new page says, for mail.sapoe.org, "connection to server succeeded; login not required."
If I click on "take all accounts online" I get the error message "mail can't connect to the account "SAPOE"" and "enter the password for user "membership"". When I enter the password, the same password that I use successfully for reading my DreamHost webmail, the error message repeats and I'm at a dead end.
If you can get me past that point, maybe we can make more progress.
If there's any way we could speak by phone, you could probably walk me through this in five minutes. I'm reasonably intelligent: I have an engineering degree from MIT -- but I'm not conversant with this business of setting up mail service protocols.
If we CAN'T speak by phone, then ask me your next question and I'll do my best to give you the information you need.
SAPOE Membership Coordinator