By 1814 she was carrying mails for the Post Office Packet Service from Falmouth, Cornwall.

Hinchinbrook first appeared in Lloyd's Register in 1815 in the section listing Falmouth Packets.

An engagement ensued during which the privateer, which was full of men, unsuccessfully twice attempted to board Hinchinbrook.

Her sails, rigging, and masts were damaged, and she had four feet of water in her hold.

She also lost some of her mail, which was hanging in slings in case it needed to be jettisoned, and which a shot carried away.

[7] On 17 December Captain Dunstone (acting) sailed from Falmouth, bound for New York.