# Transactional tags

{% hint style="warning" %}
**If you use a transactional template that has already been tagged, additional tags used in the header or API request are discarded.**
{% endhint %}

Create transactional mail streams with their own analytics by including a tag with the message. 

Messages sent without a tag will be grouped together as 'untagged' on the transactional dashboard. 

<figure><img src="/files/1AuKT6K4P3mT6TiooNmV" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
**Transactional messages can be tagged via SMTP Relay, API, or Template methods.**&#x20;
{% endhint %}

* SMTP Relay can use the header X-Transactional-Tag:&#x20;

```
X-Transactional-Tag: signup
```

* API can use the tag parameter:&#x20;

```
"tag": "signup",
```

* SMTP Relay can use the header X-Transactional-Template:

```
X-Transactional-Template: MsmsEaZZDxYyBJyVXXwA2A
```

* API can use the template parameter:

```
"template": "MsmsEaZZDxYyBJyVXXwA2A",
```

{% hint style="info" %}
**Adding a Message Tag to a transactional template will cause all messages that use this template to be tagged automatically.**
{% endhint %}

<figure><img src="/files/uyjffdGIS2NABdeNwlPH" alt=""><figcaption></figcaption></figure>


---

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```
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```

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