> For the complete documentation index, see [llms.txt](https://docs.meta-inf.hu/email-this-issue/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.meta-inf.hu/email-this-issue/administration/email-security.md).

# Email Security

## Certificates

Certificates can be uploaded into Email This Issue to process encrypted emails with Mail handlers. Currently, only PKCS12 certificates are supported.

<figure><img src="/files/zUow5M2Arqx5SzeiAReY" alt=""><figcaption><p>Certificate listing page</p></figcaption></figure>

### Adding Certificate

To upload a Certificate the following are compulsory:&#x20;

* a name&#x20;
* the certificate file itself&#x20;
* the corresponding Certificate and Private Key passwords (these are usually identical). Please keep in mind that the name should be unique across all the certificates.

<figure><img src="/files/vl1g74nKM610eNKktCjr" alt=""><figcaption><p>Certificate add screen</p></figcaption></figure>

Certificates are not editable, therefore if a certificate expires a new one has to be created.

To ensure the safety of the Certificates, we are encrypting them even before writing them into the database, where it will receive database-level encryption same as all of the data stored by us.


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