Summary of The Bug

It is not possible for Confluence to link attachment from mail server. Rendering an image working fine, however trying to link attachment will result to the following error:

"The following error(s) occurred:
Failure when converting editor format to storage format."

Steps To Reproduce

1. Set up a mail account for a space
2. Send E-mail that include attachment
3. Request Confluence to Fetch it
4. Edit a page and try to link into the attachment