---
title: "Use the inbox"
canonical: https://www.billabex.com/en/help/tasks-messaging/use-inbox/
lang: en
alternate: https://www.billabex.com/fr/aide/taches-messagerie/utiliser-boite-reception.md
updated: 2026-09-27
index: https://www.billabex.com/llms.txt
---

# Use the inbox

<section class="help-summary" aria-labelledby="in-short"><h2 id="in-short">In short</h2><p>The inbox combines confirmed incoming emails with messages whose account match still needs a decision. <strong>Received</strong> belongs to a confirmed account. <strong>Unclassified</strong> includes spam, automatic replies, and unknown accounts. <strong>Pending review</strong> links to a validation task, while <strong>Rejected</strong> closes a path that produced no business communication. <strong>Not delivered</strong> flags a non-delivery notice. Use filters and search before acting.</p></section>

## Expected result

You find an email, understand its classification state, and open the account or task that handles it.

## Before you start

- Have sender, subject, or time period ready.
- Do not use inbox alone as proof of customer balance.

## Procedure

1. Open **Inbox** and select the useful period.
2. Filter by Received, Unclassified, Internal, Pending review, Rejected, or Not delivered.
3. Search the sender and open the message thread.
4. Follow the account link when confirmed, or the task link when review is expected.
5. After the decision, refresh and verify transition to Received or Rejected.

## What Billabex does

Unclassified rows are stored without immediately creating a domain communication. Transition to Pending review, Received, or Rejected is guarded so one email cannot create competing rows.

## If the result is not what you expected

- An automatic message may remain Unclassified without needing action.
- A <strong>Not delivered</strong> message is a technical notice that an email could not be delivered to at least one recipient. It stays linked to the account when the account is known, but is never treated as a reply from the contact: check the address concerned on the customer record.
- An account shown during Pending review remains only a candidate until task confirmation.
- Raw states are not rebuilt by full replay; preserve the identifier of an important old case.