Amazon SES

By far the best feature within the AWS suite

We have been using SES for transactional as well as marketing(newsletter) email delivery. We love it.

Pros

It works, and is cheap. There is nothing of the sort to compete with SES for what it offers

Cons

Needs skillful setup as well as administration. Reports are not comprehensive and need SNS knowledge to be able to generate

Reasons for Choosing Amazon SES

it was becoming extremely expensive to send emails via Mailchimp, and Zimbra as wellas Bluehost mail delivery was leading to a number of mails landing up in spam. Elastic email, we never really were able to get comfortable with

Reasons for Switching to Amazon SES

Price and scalability