There are two types of email - transactional and bulk.
Transactional emails are those sent as a direct action to user activity; written response, payment receipt, account sign up, password reset etc.
Bulk emails are emails sent not as a direct action to user activity; marketing, promotion, newsletter, invitation, product update, service update, important changes etc.
If you send or are planning to send bulk email, a dedicated bulk email platform should be used. We recommend the following services:
- MailChimp - https://mailchimp.com/
- SendGrid - https://sendgrid.com/
- SendInBlue - https://www.sendinblue.com/