Including a simple, personal question in your newsletter, such as asking about a TV show, encourages replies. This tactic makes the newsletter feel more personal, trains the audience to engage, and improves email deliverability by signaling to providers that it's a two-way conversation.
The pre-header, or second subject line, critically impacts opens. Using specific continuation words like "and," "but," or "plus" at the beginning of the pre-header compels the reader to continue from the subject line, which can lift open rates by a significant margin.
Successful email marketing relies on an unbroken sequence of compelling elements, from the 'from name' to the body copy. A weak component at any stage—subject line, pre-header, headline—acts as a broken link, causing the marketer to lose the reader's attention and the conversion.
Driving audience engagement now depends on two-way conversations, but not all Email Service Providers (ESPs) can manage replies to mass emails. Marketers should verify their platform allows them to receive and respond to replies, as this capability is becoming essential for modern engagement strategies.
A previously deprecated tactic, placing the newsletter edition number (e.g., "Scoop #42") at the start of the subject line is now significantly lifting open rates. This highlights the cyclical nature of marketing tactics and the need for continuous re-testing of so-called "bad" practices.