# Approval by mail

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### How do I install mail approval?

You'll find a [procedure ](/doc-plugins/plugin-glpi-network/approvalbymail.md)to help you use the plugin.

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### Can I customise the validation notification?

It is possible to modify the notification via **`setup`** > **`Notifications`** **`Notification templates`** > **`tickets validation`**> **`template translations`**

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### Is it possible to validate a request that has been cancelled using the same link?

No, this is not possible, an error message will prevent you from doing so. You will have to recreate a validation request from the ticket.

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### Why hasn't the recipient received the approval email?

This may be due to several parameters:

* Check that your [SMTP](/tutorials/notifications/setup_notifications.md) is correctly configured,
* Check that the [cron ](/documentation/modules/configuration/crontasks.md)on your server (on-premise only) is active,
* Check that the automatic action responsible for sending emails is correctly configured (**`setup`** >**`automatic actions`** > **`queuednotification`**).
* Check that there are no items in your notification queue (**`administration`** >**`notification queue`**)
* Check that the recipient has an email address

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### Which tags are added by email approval?

The tags are available from **`Setup`** > **`Notifications`** **`Notification templates`** >**`tickets validation`**> **`template translations`**. **`##ticket.satisfaction.answer.1##`** URL to use to rate 1 star out of 5\
\&#xNAN;**`##ticket.satisfaction.answer.2##`** URL to use to rate 2 star out of 5\
\&#xNAN;**`##ticket.satisfaction.answer.3##`** URL to use to rate 3 star out of 5\
\&#xNAN;**`##ticket.satisfaction.answer.4##`** URL to use to rate 4 star out of 5\
\&#xNAN;**`##ticket.satisfaction.answer.5##`** URL to use to rate 5 star out of 5\
\&#xNAN;**`##ticket.satisfaction.answer.comment##`** URL to use to rate with a comment\
\&#xNAN;**`##ticket.solution.accept.url##`** URL to use to accept solution\
\&#xNAN;**`##ticket.solution.reject.url##`** URL to use to reject solution\
\&#xNAN;**`##ticket.validation.accept.url##`** URL to use to accept approval request\
\&#xNAN;**`##ticket.validation.reject.url##`** URL to use to reject approval request<br>


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```
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```

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The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.