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# Encryption and Signature for Internet Fax/E-mail

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For security, this machine can apply encryption and/or electronic signatures to the Internet Faxes/e-mails.

Use of encryption and/or electronic signatures helps prevent e-mail spoofing and information leakage.

Encryption and electronic signatures can be used with the following functions:

- E-mails sent to a standard address

- Internet Faxes/e-mails transmitted with the E-mail TX Results function

- Internet Faxes/e-mails transmitted with the Folder Transfer Result Report function

- Internet Faxes/e-mails sent to the destination registered in "Store"

- Internet Faxes/e-mails routed to the receivers registered in Personal Boxes

- Internet Faxes/e-mails transferred to the destinations registered in Transfer Boxes

- Internet Faxes/e-mails forwarded to destinations registered in "Forwarding"

- Internet Faxes/e-mails routed with the SMTP reception function

You can configure whether to apply encryption and/or a signature to Internet Faxes/e-mails for each function.

In addition, you need to configure the encryption and signature settings on Web Image Monitor in advance.

- Encryption

  Specify the encryption settings in the Web Image Monitor's Address Book for each destination that you want to send encrypted Internet Fax/e-mail to. If you select "Encrypt All", all e-mails are sent in an encrypted form, regardless of the encryption settings specified individually. The key mark () appears on the destination key of a destination set to "Encrypt All".

  If you have selected multiple destinations including destinations for which encryption has not been configured, e-mail sent to such destinations is not encrypted even if you specify encryption.

- Signature

  The electronic signature is limited in the following ways, depending on the S/MIME settings on Web Image Monitor.

  - If [Set Individually] is set:

    If you send e-mails from the standby screen, you can set [Signature] in [Security] to apply a signature for each destination.

    If you send Internet Faxes/e-mails with other functions, you can set [Signature] in [Security] to apply a signature for each function.

  - If [Do not Use Signatures] is set:

    Even if you press [Security], [Signature] does not appear.

  - If [Use Signatures] is set:

    An electronic signature is attached when you send Internet Fax/e-mail. The [Signature] setting in [Security] cannot be cancelled.

For details about e-mail encryption and an electronic signature, see "Security Guide".

- E-mail encryption and electronic signatures are not available with standard transmission to Internet Fax destinations. Encryption is only available for forwarding, routing, or transferring to Internet Fax destinations.

- Encrypted e-mail cannot be broadcasted. When specifying multiple destinations, broadcasted documents are sent one by one in the order in which the destinations were specified.

- This machine cannot receive e-mails encrypted with S/MIME. When configuring the S/MIME encryption settings, you should confirm that the receiver can receive S/MIME-encrypted e-mail.

- For details about how to specify encryption and electronic signature settings, see the following:

  - Security Settings to E-mails

  - Reception Settings

  - Initial Settings

  - Reception File Settings

  - SMTP Reception File Delivery Settings

  - Special Senders to Treat Differently

  - Box Settings

- If a certificate has expired while transferring e-mail from the server to a destination, the destination might not be able to receive the e-mail. For details about a certificate, see "Security Guide".

- If a certificate has expired while forwarding or routing Internet Faxes or e-mails, an error notification e-mail is sent to the originator or the end receiver.

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