1.   The date stamp must be altered every day, as the Post Office will not accept pre- or post-dated mail.

2.   ...a date stamp and an ink pad.

3.   Always check the date stamp to be sure.

4.   By comparing these old files to the e-mail, it was clear that the date stamp was a forgery.

5.   It provides a Postal Service date stamp to guarantee the date the message was sent.

6.   Applications will be accepted after Saturday provided they have a date stamp showing they were posted before the deadline.