Sometimes users might see tickets in their HappyFox accounts, with some attachment of the form noname. This article explains what these attachments are and why they appear as noname.
When a user sends an email using Microsoft outlook and attaches another message as an attachment(inline or otherwise), this message will be treated as a generic attachment. .msg files, which is the file format that outlook uses while attaching such emails, is a proprietary Microsoft format and not something that third party email clients like HappyFox can use. When an email is composed from Outlook and is read by another MS Outlook client, these .msg file attachments will be preserved and the user will be able to read the attached message.
Since HappyFox cannot show these attachments as .msg files, the attached file name is noname.
Here's a google group discussion on the same issue with Gmail and how Gmail handles it - https://productforums.google.com/forum/#!topic/gmail/L0rwZfE1exc