How to create it
Enter the address that should receive the messages. A shared inbox such as info@ or support@ is better than a personal one if staff may change.
Add a subject that helps you sort incoming mail, for example the name of the product or the location of the poster.
Optionally write the start of the message, such as “I would like a quote for:”, so the sender knows what to fill in.
Scan the preview and check that your mail app shows the subject and text correctly, including special characters.
Printing and placement
- On a service sticker on a machine, 3 cm is enough when people stand right in front of it. On a counter display, make it at least 5 cm.
- Print the email address in plain text next to the code. People using a computer or an unusual mail setup can still write to you.
- Keep the message text short. Every character makes the code denser, and a dense code needs more space to scan reliably.
Common mistakes
Expecting the email to be sent automatically
The code only opens a draft. Nothing is sent until the person taps send. Mention that in your instructions if the action matters, for example for registrations.
Long message text
A full paragraph of prefilled text can double the size of the code. A short opening line is usually enough.
No default mail app
Some people read email only in a browser and have no mail app set up. The plain-text address next to the code helps them.
How the mailto link is built
The code holds a mailto URI as defined in RFC 6068, for example mailto:[email protected]?subject=Request%20for%20a%20quote. Subject and body are percent-encoded, so spaces, line breaks and non-English letters arrive as typed. Most mail apps on iOS and Android support both fields.
Questions
This is a static QR code: the content sits in the code itself and works without our server.
Static and dynamic QR codes explainedCan I add several recipients?
The generator takes one recipient. If several people need the message, use a group address that forwards to all of them.
Can I add CC or an attachment?
Attachments are not part of the mailto format. CC is technically possible in mailto links but not offered here, to keep codes small.
Does the code reveal my email address?
Yes. Anyone who scans it, or reads it with a QR app, sees the address. Use an address you are comfortable sharing publicly.
Does it work on both iPhone and Android?
Yes. Both camera apps recognise mailto links and open the default mail app.