Beware of best practices. Sometimes they aren't all that great. There's a good post at the Smart Insights Digital Marketing blog: Email marketing -- debunking the "best practices."
There's a lot of stuff in the post, but three not-so-great practices stand out:
- Long subject lines are bad. (shorter subject lines are better at driving opens; longer subject lines are better at driving clicks because they deliver a more qualified audience)
- There is a best time of day or day of week to send your email.
- You should remove inactive subscribers from your list. (Inactives may not be dead or annoyed; don't remove them for inactivity alone)
Don't believe everything you hear. Sometimes a "best practice" is more like an unsubstantiated rumor.
Thanks to Be Relevant! Email Marketing Blog for the tip.