I am the IT guy at a museum in Washington, D.C. We have an e-mail list of over 5,000 to whom we send weekly HTML e-mails. My old e-mail program, PostCast Server & Pro Server, no longer work as they should. So I am looking for another program. Is there anything that works within Exchange? 5.5, 2K, or 2003? The maillist grows and is changed weekly. So I download a new database for each mailing. Otherwise I could just set up multiple distribution lists within Outlook. Anyone else doing something similar to this?