The Post Office says all deliveries are suspended this morning because of the snow.
It adds this will be reviewed later on, with an update to follow.
Public counters around the Island are also currently closed this morning, Monday, January 5.
The post office says any further updates will be posted to its website.
Schools reopening decision expected tomorrow
DOI reopens Hillberry and Creg back road
NSC's main pool reopens after repairs
Injury forces TT star to retire from Dakar Rally
Mountain Road to be closed until tomorrow
Ice warning extended by 24 hours
DOI issues advice over salt bins