Here are some general tips when choosing your printing options from our easy to use envelope and labels printing software. While they are specific to the USPS they also apply to Canada Post guidelines as well. A link follows this section for guidelines for mailing in other countries.
Tools4Contacts has settings in the 'Options -> Address Formatting' section that prints all parts of an address in the order expected by the postal service in your country.
For the USA and Canada the following rules apply...
455 LARKSPUR DR
CALIFORNIA SPRINGS CA 92926-4601
Name of addressee
House number and street name
Town + State abbreviation + ZIP+4 code