Skip to content
English - United Kingdom
Sign in
  • There are no suggestions because the search field is empty.

What is Whistl and how do I use it to send letters from agentOS?

Whistl is an add-on for agentOS that lets you send physical letters via a postal service without needing to print, envelope, and post them yourself. Once activated, you can select "Post By Whistl" when authorising letters in your inbox to have posting arranged for you.

What is Whistl?

Whistl is an add-on which agentOS can arrange for you. It allows you to physically send letters via the postbag, saving you from the administrative and physical effort of posting letters yourself.

For example, if you have letters in your inbox, you would normally authorise them and then go into your inbox, print the letters, put them in a stamped envelope, and post them. With Whistl, you can select "Post By Whistl" so that the posting is arranged for you — saving you money on stamps and time from the posting process.

How to Use Whistl

You still send letters as before via your postbag. When you authorise your letters, you can either bulk select or choose the letter individually. Once selected, choose Post By Whistl and select your desired format and postage.

Pricing

For the cost of Whistl, please refer to the agentOS price list.

Getting Started

To activate Whistl on your account, email support@agentos.com.

⚠️ Pricing note: The source article links to a pricing page rather than quoting a specific figure. Please confirm the correct pricing and update the link or add the figure before publishing.