| 摘要 |
An e-mail message to which a document is attached is received, and it is determined whether or not a digital signature is appended to the e-mail message. The document attached to the e-mail message is saved as an approved document, which is approved for printing, when it is determined that the digital signature is appended to the e-mail message. On the other hand, the document attached to the e-mail message is saved as a non-approved document, which is not approved for printing, in association with an e-mail address of the e-mail message when it is determined that the digital signature is not appended to the e-mail message. User information is acquired, and the non-approved document saved in association with an e-mail address that is associated in advance with the user information is retrieved. The retrieved non-approved document is changed to an approved document, and that approved document is saved. |
