If you are into email marketing, testing is the key. There are various things to tested to improve Email Open Rates. Link click through rates is completely different area.
- Send Email once a week ( on high traffic days)
- Send Email once number of articles reaches certain number ( RSS to Email)
- Generic Email Subject ( What’s New, Free New Articles, 3 Free New Articles, …)
- Email for every new article ( Once per day)
- Email Subject to be Article Title
- Use Readers name in Email Subject
- Include Call to Action Words ( Final Call, Open Now, One Day Sale Only, …)
- Use small caps instead of Capital letters.
- Use Symbols to emphasis an idea ( [Download], (Click Now), …)
- Short email subject line ( sometimes lengty ones work too)
Take one idea, test it for a week and run through all possible combination’s. After you find the subject that works, work to improvise on that.
Example – If sending emails on Mondays mornings has higher open rates, then try other combination’s on Monday.