Shipping emails are the most reopened messages a store sends, because anxious buyers check them repeatedly. The subject's whole job is to answer 'where's my stuff' before they even open.
Test any of these in one click:
Open the free Subject Line Tester →your {product} shipped22 charsout for delivery — arriving today33 charsorder #{order_id} is on the truck33 charsit's arriving {date}20 charstrack your package, {first_name}32 charsA great subject line still needs a platform that lands in the inbox. Kit is free up to 10,000 subscribers.
Start free on Kit →250+ subject lines across 50 scenarios in one downloadable file + spreadsheet. Use the free tester above meanwhile.
Coming soon