A rarely used but effective tactic is placing the same emoji at the beginning and end of the email preheader (the second subject line). This visual framing technique draws attention in a crowded inbox and can improve open rates for both B2B and B2C campaigns.

A counterintuitive email marketing test is to have no preheader text. This creates visual whitespace in the recipient's inbox, making the email stand out from the clutter and potentially boosting open rates by up to 15%. A simple code snippet, which can be sourced from ChatGPT, is needed to prevent clients from auto-filling the space.

While many marketers use brackets at the beginning of email subject lines, new data from subjectline.com shows placing them at the end is boosting open rates. This tactic works by drawing the reader's eye to a key callout, and contrary to myth, it does not negatively impact deliverability or land emails in spam.

Explicitly telling users what action to take in marketing copy taps into their subconscious willingness to follow instructions. Simple commands like 'open this,' 'save this post,' or 'screenshot this' prompt users to act, leading to measurable lifts in metrics like email opens and post saves on platforms like LinkedIn.

Personalizing subject lines with a recipient's industry or interests is a known tactic that provides a solid 20% lift in open rates. However, this should be considered a baseline, as more advanced psychological tactics like aspirational messaging can yield even higher returns of 24-28%.

Data from Subjectline.com reveals a powerful, simple tactic for email marketing. Using a "continuation pre-header" that begins with "and," "but," or "plus" creates a narrative link to the subject line, sparking curiosity and significantly boosting open rates. This is an easy-to-implement test for any campaign.

Readers often hesitate to open content, fearing a significant time commitment. By explicitly stating the 'read time' (e.g., 'a two-minute read') in email pre-headers or social posts, you remove this uncertainty. This small addition manages expectations, making people more likely to open the content immediately or save it for a known-duration break later.

A counterintuitive yet effective email tactic is capitalizing an entire word in the middle of a subject line, not at the start or end. This simple, cost-free A/B test is trending because it breaks visual patterns in the inbox, leading to a reported 16% open rate increase for B2B and 21% for B2C.

Over 80% of marketers send emails on the hour, flooding inboxes in the first 10 minutes. By scheduling campaigns for a non-standard time, like 8:07 AM instead of 8:00 AM, you avoid this clutter and can increase open rates by around 15%.