Email testing tool

Litmus & Email on Acid:

Litmus and Email on Acid provides spam and sender reputation checks. This is a common feature among paid email tools, even if it can be found relatively often for free as well.

 

Litmus:

Litmus is one of the biggest names in email testing, and this tool is used by most enterprise-level operations. Generally speaking, Litmus can help you preview your emails in a wide variety of platforms, and you can change code right in the platform. Litmus is, in fact, so successful that it has acquired other email testing tools, such as PutsMail.

 

EMAIL ON ACID:

Email on Acid has earned a fairly robust reputation in email testing communities as it has expanded its scope and capabilities. Currently, Email on Acid offers preview testing on 70 different clients on devices. The more configurations you’re able to test your email on, the less likely it is your email will appear broken to any given user.

Email on Acid also puts an emphasis on collaboration, so if you’re working on your newsletter as part of a team, this might be a good option for your small business or group.