Mail Attachments Iconizer 2 gives you control over attachment handling in Apple Mail. It fixes the most annoying Apple Mail flaws and allows you to configure how attachments are displayed and sent using a simple interface.
Features：
-Images and PDF documents will be displayed as icons either always, or if they exceed a specified size.
-Attachments will be displayed respecting the sender's intention if you wish so.
-Attachments in outgoing mail will have correctly set content disposition, so that they will be displayed to the recipient as you specify.
-Text and HTML attachments will not be erroneously displayed as if they were a part of the message body.
-Mail will not try to render PostScript documents directly in the messages.
Version 2.1.7:
* fixes the invisible audio and video attachment bug on 32-bit Intel processors
* fixes interaction with the stationery feature in Mac OS X 10.6
* fixes problems with resized images in drafts in Mac OS X 10.5
* numerous other minor improvements and corrections
* audio and video files now attached as icons by default in Mac OS X 10.6
