Free Tool

Email Subject Line Grader

Paste your music promo email subject line and get an instant score with actionable tips to boost your open rates.

0/200 characters

Tips for music promo subject lines

Keep it short

Subject lines between 30-60 characters get the highest open rates. Most email clients truncate at ~50 chars on mobile.

Create urgency

Words like "exclusive", "premiere", "first listen" create a sense of urgency without being spammy.

Personalize it

Including the recipient's name or referencing their taste increases open rates by up to 26%.

Avoid spam triggers

Words like "FREE", "ACT NOW", excessive caps, or too many exclamation marks can trigger spam filters.

Send promos that get opened

Promoly makes it easy to send stunning music promos with great subject lines, track opens and clicks, and collect feedback, all in one platform.