I think they charge you $.20 more if you "request" Non-machinable
When I mail a softcover book, they charge me the extra $.20 because they consider it "ridged" & not machinable - even though it is a softcover. I figure it is better for the book not to go through their machine anyhow.
Originally Posted by mollymct
Thank you! This is a first for me, sending out a block. I will look for catalog envelopes today. Never thought about it getting eaten by a machine!!