We use a Google Group as a mail list for email conversation between list members. It is open, you can view it at Google Groups and you can join it there (if you have a Google account) or send an email to eugene-pc-users-group+subscribe@googlegroups.com from the address you wish to receive it. A return email will come back and you ‘REPLY’ to that email. When your request is approved you will receive posts to the group.