How do I send a MT SBD via email?

Messages sent to an ISU from the Host are sent to the email address: This email address is being protected from spambots. You need JavaScript enabled to view it.

  1. Placing at least one, and up to a total of four, IMEI(s) into the subject line of the email identifies the destination ISU(s).
  2. If there is more than one destination IMEIs then list the additional IMEIs on the subject line separated with a single space between each IMEI.
  3. White listing may be used to restrict the originator of MT-SBD messages to particular IMEIs. This restriction will fork for email and Direct IP.
  4. The message must contain a properly formatted sender (“From:” address), otherwise the message will be dropped by the GSS.
  5. The data message to the ISU must be carried as an attachment to the email:
    1. The attachment name must have a ‘.sbd’ file name extension: E.g. ‘importantdata.sbd’
    2. File names must be 80 characters or less. (Including the .sbd extension.)
    3. File names are not case sensitive.
      1. The maximum size of the binary message (not the Base64 version) is ISU specific and is between one byte and the maximum MT message size stated in Section 1.5
      2. The GSS will reject message sizes that are too large for a particular ISU type.
  6. The attachment must use standard Multipurpose Internet Mail Extensions (MIME) Base64 encoding as defined in RFC 2045.
  7. Multiple messages may be queued by a single email by including the additional separate attachments in the email message, subject to the maximum number of messages permitted in the queue.
    1. Note that if one of the attachments has an incorrect extension (.sbd), while others are correct then no error indication email will be sent.
    2. A single email with multiple attachments creates a MT-SBD message from each attachment. In other words – one email with ten attachments creates ten entries for the destination ISU.
  8. The message body plays no role in the message transfer process; any information contained in the body will be discarded.
  9. A maximum of 50 messages may be in any ISU’s queue at any one time regardless of whether they where sent as an individual message with attachment or a single message with multiple attachments. The GSS will reject any message over this limit.