This paper describes our experience in implementing an Internet Document Delivery Service (IDDS) based on an e-mail/web gateway. The proposed solution permits librarians to continue using the e-mail service to send large documents, but at the same time overcomes problems that users can encounter downloading large size files with e-mail agents. The library operator sends the document as an attachment to the destination address, on fly the e-mail server extracts and saves the attachments in a web-server this file and substitutes then with a new message part that includes the URL pointing to the saved document. The receiver can download these large objects using a user-friendly browser. This integration between electronic mail and web-services is useful for people such as library operators who need to send large files to Internet users and can be customized in order to be satisfying for different organizations.