Bigmail   
http://www.miridix.com

A utility for splitting and compressing email messages with large attachments into multiple emails. The large files packing is also divided into some parts of the specified size. Then some messages are prepared and transferred to the default mail client. The convenient and intuitive interface allows performing this routine operation very quickly.

MailWiz   
http://www.webgenie.com

Instead of taking the list of addresses and mailing in one go, Mail*Wiz individually formats each message, using the recipient's address, and personal name if given, and sends it. While this makes the delivery a slow process, and hence unsuitable for very large mailing lists, for any site that has a relatively small mailing list (say less than 1,000) this utility offers a very effective and time-saving alternative to normal mailing.

Configuration Utility for Outlook 2003   
http://www.destinyforge.com

CUO2003 is a utility to modify certain configurations for Outlook 2003 that are normally not configurable within Outlook 2003.

MessageLock for Outlook 2003   
http://www.encryptomatic.com

Your private email message are not so private. When attached to an email, your files (pictures, documents, videos, etc) and message may as well be printed on a postcard as they travel across the internet to their intended recipient. History has proven that unsecured messages can be intercepted, redistributed, published, and tampered with, sometimes with serious consequences. Introducing MessageLock(TM) by Encryptomatic llc - Quite possibly the world's easiest to use sender-to-recipient email security solution. MessageLock provides 1-click encryption of email messages and attachments within Microsoft Outlook, combining strong U.S. Gov't approved AES-256 bit encryption with the nearly universal compatibility of the Zip file utlity. MessageLock delivers encryption and compression for your message and/or file attachments, protecting your data while it is traveling across your intranet and the internet. MessageLock gives you a choice of encryption methods, from super-strong AES-256 bit, to AES-128 bit, and the weak but highly compatible Zip-2.0 algorithm. To use MessageLock, all you do is associate an email address with a password, a process that takes just seconds. Or, just go ahead and send an encrypted email -- if MessageLock can't find the password to use, it will ask you for a password and then remember it for the next you send to this email address. If MessageLock is installed at receivers end, the message can be decrypted immediately upon receipt and displayed as a regular message. The only difference is a single line of text at the bottom of the message that alerts the reader that this message was transmitted securely. If the receiver does not have MessageLock, they can still decrypt the zip file if they have the password, and any zip utility that supports the encryption method used. WinZip 10.0 or the free TugZip utility can both decrypt AES-256. Download a fully functional trial and see how easy MessageLock is to use.

Auto Reply Manager for Outlook   
http://www.emailaddressmanager.com

Auto Reply Manager for Outlook is an email autoresponder that allows users to quickly define Outlook reply rules and filters and to auto email replies when users are out of office, on vacation or simply when they want to auto-confirm emails. You can choose to send automated replies or to forward received emails to a pre-selected email account. If you deal with multiple email accounts, Auto Reply Manager lets them create personalised replies. For those users who deal with multiple email accounts, Auto Reply Manager lets them create reply rules tailored for certain Outlook email accounts. The reply rules can also be defined so they apply only for certain contacts or mail folders where emails are received. Furthermore, users can create rules based on keywords found in the subject or body content of incoming email messages. These rules can be set to be always active or to be enabled only during certain date or time periods specified by the user. Using Auto Reply Manager, Outlook users can have personalised greetings inserted on each automated email, so these emails will look and feel personal. The email reply can be sent using the plain text or HTML format. For emails sent using the HTML format, Auto Reply Manager lets users to import HTML code or files, creating stylish automated emails. Auto Reply Manager works as an add-in for Microsoft Outlook and it can be easily accessed from the Outlook Tools menu, so users can configure the auto-reply settings directly from the already familiar Outlook interface. Auto Reply Manager is designed for any version of Microsoft Office Outlook, starting with Microsoft Office Outlook 2000. Auto Reply Manager is packed with a live update tool, allowing users to quickly download and install product updates.