A professional who sorts incoming mail for distribution and dispatches outgoing mail. Responsibilities include:

• Opens envelopes by hand or machine.
• Stamps date and time of receipt on incoming mail.
• Sorts mail according to destination and type, such as returned letters, adjustments, bills, orders, and payments.
• Readdresses undeliverable mail bearing incomplete or incorrect address.
• Examines outgoing mail for appearance and seals envelopes by hand or machine.
• Stamps outgoing mail by hand or with postage meter.
• May fold letters or circulars and insert in envelopes (folding-machine operator ).
• May distribute and collect mail.
• May weigh mail to determine that postage is correct.
• May keep record of registered mail.
• May address mail, using addressing machine (addressing-machine operator ).
• May be designated according to type of mail handled as Mail Clerk, Bills.