Get the email you asked for
An email QR code opens a new email, already addressed. Add a subject and a starting message, and people only need to tap Send.
Subjects that sort themselves
A fixed subject like “Order return” or “Volunteer sign-up” lands in your inbox ready to filter. Use a different subject for each place you print a code, and you’ll know which one people used.
Good uses
Feedback cards in a hotel room or clinic. Returns and support labels on packaging. Mailing-list sign-ups at a market stall, where people send “Add me to the list”. Lost-property tags. Job fair stands, with the role already in the subject line.
Write for a phone keyboard
Most people will reply on a phone, so ask for little. If you need a detail like an order number, leave a blank in the message, such as “Order number: ”, and people only fill in the gap.
Use an address that will last
Printed codes outlive staff changes. Use a shared address like hello@ or support@ rather than one person’s inbox, so messages still arrive after someone moves on.
Email or a form?
A form collects tidy, structured answers and works for people without a mail app set up. Email is better for a conversation, or when people need to attach a photo, like a damaged delivery. For a form, make a code for its link with the main QR code generator.
Nothing sends by itself
Phones open the default mail app with everything filled in. The message only goes when the person taps Send, and they can edit it first.