[ih] from whence cometh ">" ?

[John R. Levine]

On Tue, 14 Oct 2025, Greg Skinner wrote:

>> The 1975 v6 version of /bin/mail had no special From processing and no 
>> network code.  The v7 version had code to work with uucp and has the 
>> >From hack.  The date on the source file is May 5 1979 so that's the 
>> latest possible but it was more likely added in 1978 when uucp was 
>> written.

> The Unix Tree source code for mail.c from V7 Unix (dated 1979-05-05) has a call to sendmail() implementing the >From hack. [1]

Right.  That's a sendmail() routine in mail.c, not a separate sendmail 
program.

Regards,
John Levine, johnl at taugh.com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. https://jl.ly