<div dir="ltr">Thanks.<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jul 6, 2019 at 12:44 PM Dave Crocker <<a href="mailto:dhc@dcrocker.net">dhc@dcrocker.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
> Perhaps you can fill in some missing pieces for me. Larry Roberts did <br>
> indeed write RD, a set of TECO macros that implemented a mail user <br>
> agent. What I'm not clear about is where it fit in the chronology of <br>
> mail software. <br>
<br>
<br>
In the earliest days of Arpanet Mail -- ie, after Tomlinson's work <br>
connected Tenex systems and as FTP deployed to allow other hosts to <br>
exchange mail -- the tools for reading mail really just dumped it out.<br>
<br>
On Tenex, there was Sndmsg for sending a message to a set of recipients <br>
and it's Readmail was arguably sophisticated because it would dump out <br>
all of the 'new' mail, ie, mail received since the last time mail was <br>
dumped. Dumped means display en masse.<br>
<br>
Apparently Steve Lukasik was the first email user overwhelmed by the <br>
scale of messages he received, and he asked Larry to find a way for the <br>
message flow to be more manageable. RD was the result. I believe it <br>
was the first MUA that allowed per-message manipulation for reading, <br>
filing and deleting. Vittal's MSG notably added forwarding and <br>
replying. (I quickly viewed the presence of the reply function as <br>
seminal and subjectively assessed email flow as increasing exponentially <br>
within months of its availability.)<br>
<br>
There are a number of histories that chronicle the timeline. I've got a <br>
site that lists quite a few:<br>
<br>
<a href="http://emailhistory.net/" rel="noreferrer" target="_blank">http://emailhistory.net/</a><br>
<br>
Probably the most diligent and detailed chronicle is Craig Patridge's <br>
2008 effort:<br>
<br>
The Technical Development of Internet Email<br>
<br>
<br>
<a href="https://www.computer.org/csdl/magazine/an/2008/02/man2008020003/13rRUx0xPuR" rel="noreferrer" target="_blank">https://www.computer.org/csdl/magazine/an/2008/02/man2008020003/13rRUx0xPuR</a><br>
<br>
d/<br>
-- <br>
Dave Crocker<br>
Brandenburg InternetWorking<br>
<a href="http://bbiw.net" rel="noreferrer" target="_blank">bbiw.net</a><br>
</blockquote></div>