Abnormal files

When an error of this type occurs, the machine stops receiving and commands the server to erase the message. Then the machine prints an error report and sends information about the error by e-mail to the sender address (specified in the "From" or "Reply-to" field of the message). If there is an incomplete received message in the machine memory, it will be erased.

The machine prints an error message when it fails to send the receive error notification after a certain number of attempts.

The following types of files are judged to be abnormal if one or more of the following are detected:

  1. Unsupported MIME headers.
    Supported types of MIME header

    Header

    Supported Types

    Content-Type

    Multipart/mixed, text/plain, message/rfc822 Image/tiff

    Charset

    US-ASCII, ISO 8859 X. Other types cannot be handled, and some garbage may appear in the data.

    Content-Transfer- Encoding

    Base 64, 7-bit, 8-bit, Quoted Printable

  2. MIME decoding errors
  3. File format not recognized as TIFF-F format
  4. Resolution, document size, or compression type cannot be accepted