A "thank you for joining" membership letter should include a personalized greeting to the new member. Use the member's first name in your salutation.Do you want new ways to welcome members into your church? Check out these top church membership welcome letter templates and best practices. Here are 10 things your welcome letter or email to new members must include plus a template that can be customized for your organization. Get help drafting the welcome letters to the new members of your nonprofit organization with these two useful writing templates! Sponsors can use this friendly, sample email template as initial engagement with their newcomer and provide preliminary resources and support. It sets the tone for your member's journey. After all, this welcome letter is your first opportunity to make new members feel like they belong. I hope this letter finds you well.