Mail merge and envelopes

[Asif M.]

Hello there, any advice to this matter is highly appreciated. I am lucky enough to have some free labor(mom) for couple of months. I have my list, I have my letters. What is the easy or efficient way to put the correct letter in the right envelope. As every letter is addressed to particular individual and going to wrong address will be a big waste. Hopefully I am making some sense. If this has been answered before please point me to it Thx