Email Subject Emoji & Pre-Header Checker
Check subject line + preview text together to optimize the inbox impression — the moment that decides whether your email gets opened.
Inputs
Inbox Preview
Subject + preview are one composition
Most marketers optimize the subject line and ignore the preview text. Mobile inboxes show the preview right after the subject — they read as one sentence. Designing them together gives 10-30% open rate lift over treating them separately.
Frequently Asked Questions
Should I use emojis?
Test, do not assume. Emojis help in some categories (lifestyle, e-commerce) and hurt in others (B2B SaaS). They also play well in the subject when the preview is plain — high contrast wins attention.
Want a Klaviyo or Mailchimp email program built for inbox conversion?
Riman Agency runs email programs for brands of every size.