From Epsilon Computer Services:
Customer Register stores Contact details and allows you to find them based on selection criteria. You can also schedule up-coming tasks using the Calendar feature. With a group of Contacts found, you can easily create an email campaign to send a single message to each contact - no more hassles with hundreds of email addresses in the CC or BCC fields. Often, such messages are not accepted by internet providers or are treated as SPAM by the recipient's server. Customer Register sends a single message, tailored specifically for that contact, to each email address. Attachments can also be included with the message.