If you don't yet have an email marketing solution, we recommend these solutions for making and sending beautiful mass emails out to your customers.
These providers all have great free options, are easy to use, and come widely recommended.
- Mail Chimp: https://mailchimp.com/features/
- Vertical Response: http://www.verticalresponse.com/features
- Send in Blue: https://www.sendinblue.com/features/
A quick visual summary: