Postage Due

[tdhcem]

I've gotten back into trading cards, and in the last few weeks have noticed LOT of items arriving postage due, especially those utililzing E-bay's labels.  Spoke with 3 different mail carriers, they state its due to the thickness of the envelopes used, they're either 'non-machineable" or in the 2 most extreme cases were technically "packages" due to the thickness.  Just curious if anyone else has noticed this? 

[wooden_flower]

The standard envelope label can not be used on an envelope more than 1/4" thick.  To be forced to the package rate , those envelopes must have been 3/4" thick.

The standard envelope package must also be flexible.

@shipscript- do you have a photo showing the flexibilty required? I remember that you investigated this.  thanks!

[shipscript]

Ah yes, the travels and travails of an envelope through the USPS sorting hub:

Postal Sorting

eBay has some recommendations here:

https://www.ebay.com/help/selling/shipping/shipping-options/ebay-standard-envelope?id=5308 

But my test is to make sure the envelope can bend around a coffee cup.

Shipping - eBay standard envelope