Bug 2966

Summary: Incorrect MIME type recognition of some files when attached
Product: Claws Mail (GTK 2) Reporter: LoseDanger
Component: OtherAssignee: users
Status: RESOLVED INVALID    
Severity: normal    
Priority: P3    
Version: 3.9.1   
Hardware: PC   
OS: Windows XP   

Description LoseDanger 2013-07-12 19:00:41 UTC 
Claws Mail does not set the proper MIME type for some filetypes, such as PDFs.

When I attach a PDF file to email, it is attached with MIME type application/octet-stream instead of the correct application/pdf.

The same happens with ZIP files and some other files. I suggest that claws implements correct labeling of at least the media types listed on http://www.iana.org/assignments/media-types

Some nice "background reading" on Wikipedia: https://en.wikipedia.org/wiki/Internet_media_type

Example instructions:

1) Create a new email message.

2) Add a new attachment of type PDF.

3) Observe that it is identified as MIME type application/octet-stream instead of application/pdf.