> ## Documentation Index
> Fetch the complete documentation index at: https://help.useclearline.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Message delivery

> Troubleshoot SMS, email, voice, and web chat delivery issues.

When messages are not sending or arriving, start with the channel configuration and then check the conversation source.

## Email delivery

Check:

* The email domain is verified.
* The sending address is not already assigned somewhere else.
* The inbox has an email channel.
* The reply composer has at least one recipient.
* Connected account status is not **Error** or **Expired** when personal email context matters.

## SMS delivery

Check:

* The inbox or outbound sender has a phone number.
* The phone number supports SMS.
* The contact has a valid phone number.
* The contact is not on the compliance block list.
* Global contact limits have not skipped the contact.

## Voice calls

Check:

* The phone number supports voice.
* The number is attached to the right inbox or outbound sender.
* The inbox agent is available if autopilot should answer.
* Recording disclosure is configured according to your policy.

## Web chat

Check:

* The widget is enabled.
* The website domain is allowed when restrictions are on.
* The visitor completed required pre-chat questions.
* The conversation appears in the connected inbox.

<Tip>
  Open the conversation thread when possible. It shows channel-specific messages, call cards, system messages, and AI decision activity.
</Tip>