Why does mail come back when the address was printed right?

Question

This is a paycheck envelope with 2 windows. One on top left and one on bottom right. The address is correct. I have re-checked. This is how the address is written:

XXXX Timber Lake Dr.
Apartment # XXXX
MurreyPoint AL XXXXX

Any idea why this might have come back?

Thanks Guys..

Additional Details

Stamp amount is right too.

Hi rtfm, the envelope doesn't say anything at all. Just regular mail markings on it. Thx for your response.

Answer 1

Best Answer - Chosen by Voters

What did it say on the envelope when it was returned to you? The Post Office usually stamps the envelope with a reason, such as "Unknown at this address" or "Insufficient postage" or "No such street number". What did your envelope say?

Answer 2

Maybe the addressee denied to receive the letter.