mail merge
noun [ C or U ]
ukus MARKETING, COMMUNICATIONS, IT
the use of a computer to produce many copies of a letter, each copy with a different name and address, or a computer program that does this:
Use mail merge to print address labels and address letters to multiple recipients.
Once you master mail merges, you'll be able to handle all of the company's mailings.
mail-merge
verb [ I or T ]
If you mail-merge the labels, it's much faster than typing out each address by hand.