What is a MailHandler ID?
What is a MHID?
A MailHandler ID, or MHID, is a serial number that starts with PT, PU, PV, EP, PX, CM or PM. It can be used as an identification method during registration along with your customer number.
Where can I find it?
Your MailHandler ID (MHID) can be found on the packing slip, on the label on the bottom of the PostBase® or from the information screen in the menu area on your PostBase® machine.
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