> For the complete documentation index, see [llms.txt](https://vitrina-blogerov.gitbook.io/bloggers-showcase/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vitrina-blogerov.gitbook.io/bloggers-showcase/product-docs/product-docs-en/possible-errors/a-post-to-the-channel-or-a-mailing-is-not-sent.md).

# A post to the channel or a mailing is not sent

The mailing does not reach some users, publishing to the channel returns a Telegram error, or the statistics show blocked users.

### Symptoms

* the mailing was sent to not everyone;
* some users are marked as `blocked`;
* the post is not being published to the channel;
* Telegram returns a permissions error;
* the button in the post did not appear;
* the channel does not accept a message from the bot.

### Possible causes

{% tabs %}
{% tab title="Mailings" %}
Users blocked the bot, did not start it, or Telegram rejected the message.
{% endtab %}

{% tab title="Channel" %}
The bot was not added as a channel administrator or does not have permission to publish.
{% endtab %}

{% tab title="CHANNEL\_ID" %}
An incorrect channel ID is specified in the admin panel.
{% endtab %}
{% endtabs %}

### What to check

Check the bot service logs:

```bash
sudo /opt/bloggers_platform/apps/ru/manager.sh logs bot
```

Check the settings in the admin panel:

* Telegram bot token;
* `CHANNEL_ID`;
* bot permissions in the channel;
* the user list and mailing statuses.

### How to fix it

1. Add the bot as an administrator of the target channel.
2. Make sure that the channel ID is specified, not a regular link.
3. For mailings, keep in mind that users who blocked the bot will not receive messages.
4. Clear users with status `blocked`, if they are no longer needed in the database.

{% hint style="warning" %}
Telegram does not allow the bot to write to users who have never started the bot. Mailing works only for the user base that has already interacted with the bot.
{% endhint %}

### When to contact support

If the bot is an administrator of the channel, `CHANNEL_ID` is specified correctly, but the publication does not go through, logs are needed `bot` with a Telegram error.


---

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