Write subject lines that get opened, not filtered
Type your subject line and preview text. Get a score with the reasons behind it, and see how the email will look in a phone and a desktop inbox before you send.
What you get
- Length and mobile cut-off checks
- Common spam-filter words flagged
- Phone and desktop inbox preview
Signing off the email? Make one with the email signature generator.
Score
83
- ◐51 characters: fine on desktop, cut off on most phones.
- ◐10 words: long. Lead with the important words.
- ✓No common spam-filter words.
- ✓No shouting capitals.
- ✓Punctuation is calm.
- ✓No emoji (fine; one can help stand out).
- ✓Preview text set: it shows after the subject and adds a second line of pitch.
Phone inbox
Your 3 quick wins for more Google rev…
Takes 10 minutes, no tools needed.
Desktop inbox
Cut-offs are typical, not exact: each app and screen width differs. The score is a checklist, not a promise of opens; sending reputation and a clean list matter more to the spam folder than any one word. Nothing you type is stored.
Say what is inside, in under 50 characters.
People decide in a second whether to open. A short, specific subject line that matches the email beats a clever one, and a preview text that adds a second reason to open gives you two lines instead of one.
- How long should an email subject line be?
- Around 30 to 50 characters, or 4 to 9 words. Most phones show 35 to 45 characters before cutting the line off, so put the important words first.
- Which words send emails to spam?
- No single word does on its own, but phrases like “free money”, “act now”, “risk-free” and “100%”, lots of capitals and several exclamation marks add up. Your sending reputation and list quality matter more.
- What is preview text?
- The short line inboxes show after the subject. If you don't set it, the inbox shows the first words of the email, often “View in browser”. Most email tools have a preview text or preheader field.
- Should I use emoji in subject lines?
- One relevant emoji can help an email stand out in a busy inbox. More than one looks like promotion and can hurt with some filters and readers.
- Sending lots of emails by hand?
- We set up email automations that send the right message at the right time, from your own domain.
Emails landing in spam?
We fix sender settings (SPF, DKIM, DMARC) and set up automated emails that reach the inbox.