Correct a few more definitions, capitalize header fields consistently.
Clarify ~. escape definition, remove duplicate entry, and shorten adefinition.
Add support for ~_, ~x, ~i, ~a, ~A, ~<, and ~r! tilde-escapes. Improvetilde-escapes documentation.Mostly obtained from: NetBSD
Move setting of 'crt' mail variable to {/usr/src}/etc/mail.rc.
Teach boring old mail(1) about the use of the REPLYTO environmentvariable which is de-facto standard for MUAs.Teach bomail to generate an in-reply-to header so threading MUAs andmail->news gatewa
Teach boring old mail(1) about the use of the REPLYTO environmentvariable which is de-facto standard for MUAs.Teach bomail to generate an in-reply-to header so threading MUAs andmail->news gateways won't lose context.While i was at it, removed two gratuitous standard violations forfunctions starting with an underscore.
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Correct the man pages, USD doc and online help to refer to /var/mailinstead of {usr|var}/spool/mail
This is the 90's, ask the user for a Subject by default when sending mail.
BSD 4.4 Lite Usr.bin Sources