# \#mailboxer

**URL:** https://erlangforums.com/tag/mailboxer/896.md

[Latest](https://erlangforums.com/latest.md) · [Categories](https://erlangforums.com/categories.md) · [Tags](https://erlangforums.com/tags.md)

---

## [Mailboxer - a standalone tool that helps developers statically rule out type and communication errors - prototype sandbox now available](https://erlangforums.com/t/mailboxer-a-standalone-tool-that-helps-developers-statically-rule-out-type-and-communication-errors-prototype-sandbox-now-available/5126)

<div class="topic-metadata">

**Author:** [@duncanatt](https://erlangforums.com/u/duncanatt)\
**Replies:** 2\
**Last updated:** [October 15, 2025, 6:43am UTC](https://erlangforums.com/t/mailboxer-a-standalone-tool-that-helps-developers-statically-rule-out-type-and-communication-errors-prototype-sandbox-now-available/5126 "2025-10-15T06:43:07Z")

</div>

Mailboxer is a new, standalone tool that helps developers statically rule out type and communication errors in actor-based programs. It builds on Mailbox Types, a new behavioural typing approach for actor languages such…