Mail merge
Capability of database software, word processors, and some e-mail programs that takes a standard form and formats that form with unique fields such as e-mail address, name, address, phone number, or other personal information to make the message look unique. For example, a standard form may look like:
[address]
Dear [username],
We would like to thank you [username] for purchasing our product.
Sincerely,
Some company
With a program capable of mail merge, the program would pull the personal information and place the appropriate information into the above fields. So the above form may look like:
1234 some street
City, State Zip
Dear Bob Smith,
We would like to thank you Bob Smith for purchasing our product.
Sincerely,
Some company