"MessageStatus: Protocol layer was unable to send a message" is displayed when sending email with an attachment on a BlackBerry 10 smartphone

Article ID: KB34009

Type: Support Content

Last Modified: 03-28-2013


Product(s) Affected:

  • BlackBerry 10
  • BlackBerry Device Service
  • BlackBerry Device Service
  • BlackBerry Z10 smartphone
  • Novell Data Synchronizer

When attempting to send an email message containing an attachment, the message fails to send. The status of the failed message displays the following:

MessageStatus: Protocol layer was unable to send a message

This can be caused by an attachment size limit imposed by Novell Data Sync. By default, attachments over 500KB in size are restricted.

The following technical article on Novell's website, provides instructions for increasing the Attachment Size limit:



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