heirloom-mailx is a clone of System V "mailx", based on Berkeley Mail 8.1.
It has been enhanced to provide all the command line options
required by POSIX, as well as several other features:
* support for MIME, S/MIME, and attachments
* support for SMTP(S), POP3(S), and IMAP(S)
* support for maildir-format email archives
... and much more.
This is updated from CVS to get current OpenSSL compat.
NSS could be used instead of OpenSSL.
Some security fixes from Florian Weimer are included - see
http://seclists.org/oss-sec/2014/q4/1066
krb5 is used for IMAP authentication over GSS; our libgss doesn't work
(and might not be OK to link with openssl?) and using libgssglue
will probably require some patching of the makefile.
