# Files

In this section, you will learn details about [whitelisted file types](#whitelist), the [maximum file size](#maxsize) used within sessions or in emails, and last but not least, [file storage length](#maxtime) within mluvii is listed at the end.

## List of whitelisted documents <a href="#whitelist" id="whitelist"></a>

We collected the file types based on the usage pattern of our current customers and screened each one for possible security risks, which determined the whitelist below.

{% hint style="info" %}

* ***Office** \[".doc", ".docx", ".xls", ".xlsx", ".ppt", ".pptx", ".odt", ".ods", ".odp", ".txt"];*
* ***Image** \[".png", ".gif", ".bmp", ".jpg", ".jpeg", ".jpe", ".jif", ".jfif", ".jfi"];*
* ***PDF** \[".pdf"];*
* ***VideoUrl** \[".mp4url", ".videourl"];*
* ***YoutubeUrl** \[.youtube];*
* ***Video** \[".mov", ".mp4"];*
* ***Audio** \[".mp3", ".m4a", ".aac", ".oga", ".flac", ".wav", ".pcm", ".aiff"];*
  {% endhint %}

## Maximum file size <a href="#maxsize" id="maxsize"></a>

### Sessions

Each file has a 25 MB limit.

### E-mails

{% hint style="info" %}

* ***Uploaded files***
  * *The maximum size in case of uploading a file by an operator is 10 MB*
  * *If you add an attachment to an email via* [*API*](/en/for-it-specialists/public-api.md)*, the maximum size is 25 MB*
* ***Files received***
  * *When receiving emails, each file has a limit of 25 MB.*
    {% endhint %}

The sum of uploaded files has a 10 MB limit when sending e-mails. While receiving e-mails, each file has a 25 MB limit.

## Standard file storage period in mluvii <a href="#maxtime" id="maxtime"></a>

Several types of files are stored within mluvii. Here you can find their standard retention time.

| File type                                                   |    Storage period    |
| ----------------------------------------------------------- | :------------------: |
| Common tenant files (settings in ui)                        |       unlimited      |
| My files (settings in ui)                                   |       unlimited      |
| Files uploaded to session and shared by operator            |        2 years       |
| Files uploaded to session and shared by client              |        2 years       |
| Session recordings (regardless of communication channel) \* |        1 year        |
| Files uploaded to offline form by client                    | <p>1 year</p><p></p> |

{% hint style="warning" %}
*The amount of stored recordings (phone calls) is limited to 25,000 minutes (approximately 417 hours).*
{% endhint %}

{% hint style="info" %}
*Retention of telephone recordings beyond the limit and retention of Audio/Video recordings will be subject to individual pricing.*&#x20;

*The average A/V recording size is approximately 2 MB/minute at low resolution and 3.25 MB/minute at high resolution.*
{% endhint %}


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