How to choose the right mail service for your customers

Mail is a trusted, inclusive and effective way for businesses large and small to engage with customers. There are options to suit different campaigns.

Key points

  • Mail is still one of the most effective ways to reach and engage with customers, with 81% of people opening and reading mail immediately.1
  • Australia Post mail services can be broken down into three categories: unaddressed, semi-addressed and addressed.
  • The service you choose can depend on what you’re sending, the importance of your message, and your campaign budget.

Why mail matters in marketing

If you’re keen to explore the potential of mail to engage with customers at home, a great place to start is by wrapping your head around the different types of mail services. 

Mail is a proven way to reach and engage with your audience. It’s trusted, particularly when addressed or semi-addressed (such as ‘To the householder’). It’s inclusive, with the ability to reach all Australians – including the 2.5 million who are not online1 – or just a tightly targeted geographic area. It’s a lot easier to stick a letter on the fridge than an email. And, 81% of people open and read their mail immediately.

At Australia Post, mail is broken down into three categories:

  • Unaddressed
  • Semi-addressed
  • Addressed 

Question is, how do you know which one is right for your marketing campaign or business objectives? Let’s take a look.

Learn more about Australia Post mail services

Explore all of our mail products and services or reach out to your account manager to find out how easy it is to get started.

1. Unaddressed mail

Ideal for: flyers, brochures, catalogues 

Unaddressed mail is the cheapest option for sending via post. It’s a great option if you want to send generic information about upcoming sale events or promotions, to increase brand awareness or to acquire new customers. You can pick a specific geographical area and Australia Post can deliver into the letterbox of every home or apartment in the chosen location. 

If your business is nationwide, you can send your promotional flyers and catalogues to up to 11.6 million letterboxes nationwide.3

Learn more about unaddressed mail

2. Semi-addressed mail 

Ideal for: letters to the household

Also known as acquisition mail, semi-addressed mail helps you target residents in specific areas with addressed, but not personalised, mail. Being more cost-effective than addressed mail, it’s perfect for sending information or updates about a specific area – for example, a power company that wants to alert customers to upcoming street works in a local neighbourhood.

Learn more about semi-addressed mail.

3. Addressed mail 

Ideal for: important letters to individuals, highly targeted promotions  

When you absolutely need to get information into the hands of a recipient, addressed mail is still the most effective way to achieve this. It can’t get lost in an inbox, and it won’t disappear in an Instagram feed. Addressed mail is particularly effective at reaching minority and unserved communities.

Retailers may choose to send out addressed mail with birthday offers or other promotions to help stand out in a crowded and highly competitive market.

Learn more about addressed mail (for sending less than 300 items).  

Which mail service offers the best value for money?

There’s no easy answer to this question. Unaddressed mail is certainly the most affordable option for sending letters or flyers, with prices from just $0.215 for a small letter (compared to $1.10 for an addressed small letter).

If you’re doing a bulk campaign and don’t think personalisation or targeting will add value, then unaddressed mail will be the best value for money. But if you want to target specific individuals with personalised messages that achieve a higher level of engagement, then it could be worth investing in extra postage costs.

1 Australian Digital Inclusion Index,

2 Mail’s Role in the Digital Age, Accenture 2020, commissioned by Australia Post.

3 As at 26/2/2018 Australia Post has access to 11.6 million delivery points nationally - including 2.8 million delivery points that bear the message "No Advertising Material", or similar words. These additional 2.8 million delivery points can only be accessed for community notices, where delivery is accepted by law. For addresses that accept advertising, Australia Post can provide access to 8.8 million letterboxes.