> For the complete documentation index, see [llms.txt](https://v5docs.keyfax.biz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v5docs.keyfax.biz/administration/message-queues.md).

# Message queues

Everything a conversation raised that has to be sent: emails, letters, text messages. This is where to look when somebody says a message never arrived.

<figure><img src="/files/ZqBGdlBAhQCOzof1xubV" alt="The Message queues page"><figcaption><p>The message queue</p></figcaption></figure>

## Reading the queue

Each row is one message, with what it is, who it is for, and where it has got to. A message sitting in the queue has not failed — it is waiting its turn.

## When something has not gone

The usual causes are dull and worth checking in order: a missing or malformed address, an attachment that could not be produced, or the service that sends it being unavailable at that moment.

A failed message can be retried once the cause is fixed. Retrying without fixing the cause simply fails again.

## Worth watching

A queue that is growing rather than draining is the signal to act on, and it is easy to miss because nothing else goes wrong: conversations still complete, and the work they raised silently does not leave. It is worth a look on a schedule rather than only when somebody complains.