[ih] TCP PUSH flag

[Greg Skinner]

Shortly after the 1-Jan-1983 NCP-to-TCP/IP cutover, there were some issues with SMTP involving the PSH flag.  [1] Also take a look at the first few months in 1983 of the tcp-ip mailing list. [2]

--gregbo

[1] https://www.rfc-editor.org/in-notes/museum/smtp-mail-errors
[2] https://github.com/matthewgream/www-securitydigest-org/tree/master/tcp-ip/archive/1983