Sylv,
I just found
http://www.christianemailservice.com/
I have never used them but they say
Welcome to Christian eMail Service
The Christian eMail Service is a FREE service that allows you to create and maintain email mailing lists on our servers. Keep in touch with your group members and avoid SPAM! Communicate quickly and easily with your customers, associates, classmates, students, church membership, Bible study group, youth group, mission, family members, or any Christian group or association. The Christian eMail Service makes it easy to get in touch and stay in touch …and best of all -
It’s FREE!