formletter

noun
UK /ˈfɔːmˌletə/
US /ˈfɔːrmˌletər/

A form letter is a ready-made letter you can send to many people by just filling in names.

The school sent a form letter to every parent about the new schedule.


OTHER MEANINGS

2. A letter produced automatically by a computer program, with personal details inserted into fixed text.

The company used a form letter to thank each customer by name.

3. A printed letter used for routine business communication that rarely changes.

He received a form letter rejecting his job application.

4. A standardized message sent to many recipients at once, often for advertising or announcements.

The charity mailed a form letter asking for donations.