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.

Frame email subject lines to appeal to the higher-level position your audience desires. A manager wants to know what a CMO is doing. This psychological tactic, which plays on ambition, can lift open rates by 24-28% over standard personalization by speaking to who your audience wants to become.

Prospects often hesitate to open emails, fearing a lengthy commitment. By adding an estimated read time (e.g., '3-minute read') to your pre-header, you manage expectations, remove friction, and make it easier for them to engage, which boosts open rates.

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.

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.

To make an email stand out, use a subject line under three words and remove the preheader text. This creates visual white space around your message, distinguishing it from the 98% of emails that use preheaders. This visual disruption can skyrocket open rates.