The "Ex-Tian" mailing list is the name for the "ex-Christian mailing list" which was a major discussion group for ex-Christians back in the day when the Internet was new and mailing lists were popular. It was a great community and many fascinating journeys were described and discussed there.
Thanks to Michael Rathbun for collecting these files and for hosting them for a few years. They are a mine of fascinating discussion and revelation! Since then, Michael informed me he has had to retire the files from his server due to loss of his high-bandwidth connectivity, so I volunteered to host them for him.
The unofficial EX-TIAN Archive can now be downloaded from here.
The archive consists of a ZIP archive file containing text files organized in thread order.