This article from MarketingSherpa is a good one about content testing – read more here.

Here’s my top areas of email newsletter testing: –

• Time of send
• From name
• From email address
• Subject line

All these drive stong open rates- without an “open” any content testing is dead in the water.

But with a growing concern about the unreliablity of the measurement of opens you need to track click throughs to gauge your success.

Hence you now need to add in any content testing to this list to help you see what is working while remembering the golden rule of testing to test just one thing at a time.

(Those with a monthly newsletter cycle could take some time to uncover the gold.)