MailBee SMTP   
http://www.iforum.com

MailBee SMTP is a powerful and easy to use COM object which enables ASP and Windows applications to create, send and queue mail to SMTP servers. Secure authentication, email validation, correct MIME composer, multiple attachments, and much more. Can be used in conjunction with SSL, POP3 and IMAP4 components. Royalty-free distribution.

Outlook Express Attachment Extractor   
http://www.ope2000.com

Outlook Express Attachment Extractor is a simple tool, that can easily extract pictures and attachments from outlook express into a directory of your choice. You can chose to extract only pictures or all of the attachments. A report can be created, that lists the extracted items. Features: (i) Extract any pictures from outlook express mail folder and then save them into a specified folder. (ii) Save any attachments such as document files into a directory of your choice. (iii) Sort extracted attachments and create sub directories according to sender's name or file extension. (iv) A Html-based Report for your favorite pictures and attacments. (v) Options for managing your email attachments in a breeze. (vi) Save attachments that are grabbed from newsgroup.

Outlook Attachment & Picture Extractor   
http://www.ope2000.com

Outlook Attachment and Picture Extractor is a simple tool, that can easily extract pictures and save attachments from Outlook 2000 (or higher) into a directory of your choice. You can chose to extract only pictures or all of the attachments. A report can be created, that lists the extracted items. Features: (i) Save any attachments and pictures from outlook mail folder and then save them into a specified folder. (ii) Replace the attachments inside the mails by shortcuts to the extracted files. (iii) Sort extracted attachments and create sub directories according to sender's name or file extension. (iv) Move mails that already saved to a outlook folder of your choice. (v) A Html-based Report for your favorite pictures and attacments. (vi) Options for managing your email attachments in a breeze. (vii) Asian Double Bytes Support

EM Antiblock   
http://www.engelmann.com

By default, Microsoft Outlook will prevent you from opening certain file attachments that can damage your computer, e.g. by containing malware code. However, sometimes you need to be able to handle these attachments. EM Antiblock offers you the ability to easily decide which file attachments you can trust, by managing the file extensions for the blocked attachments. And the best of all: This software is freeware! Compatible with Outlook 2000 to 2003.