Lead Report / History

The Receiver That Chose What Came First
Before SMTP, a mail receiver could answer `MRSQ ?` with `215 T Text first, please`. It was asking for the complete message before it learned a single recipient. Another receiver could prefer to collect every address and accept one shared body afterward. This was more than syntax. The choice determined what the receiver had to remember, when a failure became specific to one recipient, and when one reply spoke for a group. SMTP removed that choice from the public dialogue while preserving the economy it was meant to provide.











