Transactional email sending services are designed for high deliverability in addition to being configured to send very large quantities of messages. Just because transactional email services are of great quality doesn’t mean that they are cost prohibitive for small Organisations; in fact, like Mailgun, some services have a generous free allowance per month. If you have a small Shopify or WooCommerce eCommerce store then you really have no excuse not to be taking advantage of a transactional email service.
Below are listed three of the better transactional email sending services.
Best for medium volume sending.
Mandrill is a service by Mailchimp and is incredibly fast in sending and enjoys very high deliverability. As a Mailchimp expert I often get asked the difference between Mandrill and Mailchimp. Mailchimp offer various good articles about the difference.
Best for high volume sending.
SES is relatively low cost and is an excellent service for high volume senders.
Best for low volume sending.
Mailgun is a good choice for low volume senders due to the free account (the free account allows up to 10,000 send per month). Mailgun is however also used by large volume senders such as Xero who use Mailgun for their clients invoice, quote and receipt sending.