Letterbox Documentation

Docs: Custom email subject line

You can customise the subject line of emails sent to your recipients.

  • By default the subject is "A Letterbox contact message".
  • A custom subject helps you identify and organise incoming messages.
Subject restrictions
  • The subject can be up to 255 characters long.
  • It must not be empty.
Configure email subject
  • In your profile, under a contact form, find the subject line setting.
  • Enter your preferred subject line.
  • Save the changes. New messages will use the updated subject.