EmailExpert has been testing the new service from Amazon, the Amazon Simple Email Service. A cloud based barebones ESP similar to a service like smtp.com or SendGrid but far cheaper.
We will be publishing more findings over the course of this week. We wondered about deliverability from the cloud, and reading statements like this:
“Amazon SES has been invaluable to our business by letting us no longer worry about email deliverability ” said Patrick Lightbody, Director of Product Management at Neustar, Inc. “For our self-service SaaS business, the email signup process must be flawless. Any delay in delivery can have significant impact on our signup rates, which require email verification, and Amazon SES has already improved those signup rates by about 10%.” Meant we were keen to test the service for ourselves, which is what we did.
One of the first things we did was to subject Amazon to the spam analysis tests offered by Litmus App
These tests check to see inbox placement across a wide variety of ISP’s and a number of spam filters. The tests are fairly exhaustive and it would appear that Amazon passes the ‘deliverability’ test with flying colours, based on these initial tests. Our test messages sent via Amazon SES consistently achieved inbox placement. We will continue testing at larger volumes and provide further details and analysis shortly.
We have already conducted our own testing of inbox placement to yahoo.co.uk and a number of other services with the same results repeated, consistent inbox placement. With Facebook email arrives in “other” as is expected until added to the inbox rules. It should be noted email was sent using the command line interface from our server and we did not utilise the API which would be required to sign messages with DKIM.