Manage Engine Support Center plus is unable to send attachments to clients while creating a new request/updating/closing. While support center plus is able to recieve attachments if a client sends an email with attachment.

Support center plus shows the document being attached but while we update the request to the client, email is delivered without attachment. 

We also checked with the attachment size and the documents are in kb size.

Kindly update us with this issue.

Current Version : 

ManageEngine Support Center plus  7.9.0  Build Number  7936