RFC 1428 · INFORMATIONAL · 1993
SUN · 14 JUN 2026
Transition of Internet Mail from Just-Send-8 to 8bit-SMTP/MIME
Overview
RFC 1428, “Transition of Internet Mail from Just-Send-8 to 8bit-SMTP/MIME”, is an Informational document published in February 1993 by G. Vaudreuil. The canonical text is published by the RFC Editor.
Abstract
This document outlines the problems in this environment and an approach to minimizing the cost of transition from current usage of non-MIME 8bit messages to MIME. This RFC provides information for the Internet community. It does not specify an Internet standard.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
Read this RFC
The canonical text of RFC 1428 is hosted at rfc-editor.org. Available in TXT,HTML.
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