Apparently, the USPS offices have now been instructed not to scan incoming mail at all, which is going to make it tough to prove that you've dropped mail off.
There is a solution - it's called a SCAN form. Apparently, when you finish buying all of your postage online, you can print this form out, which consolidates all of your day's mailings into one barcode which the Post Office will scan and which then shows all of your packages as having been accepted by the Post office.
It's available for Click n Ship, don't know if it's available for Endicia yet.
Further information here;
http://www.usps.com/clicknship/scan-form.htm
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It is our similarities that make us all human - it is our differences that make us all interesting
Imagination will often carry us to worlds that never were. But without it we go nowhere. Carl Sagan