Let's share ideas around different tools that you may use as a nonprofit.
I don't have a lot of experience with email marketing but one tool that we have found to be a good starter for email marking has been MailChimp. Mailchimp offers a good service free for up to 2,000 email recipients. This number of recipients will cover a lot of nonprofits but there are some features that may be worth paying the monthly fee.
Do you have any experience with email marketing? What tools have you used?