[ale] a better ssmtp?

[Jim Popovitch]

I use ssmtp to get mail (logchecks, tripwire, etc) off a few distributed 
hosts.  It works, it works well, it emulates basic sendmail 
functionality, and it doesn't require a daemon (it simply provides 
/usr/lib/sendmail).  The problem I have with ssmtp is that it only 
supports one mailhub in it's configuration.  This is great if you only 
have one mailhub that is running 100% of the time (LOL!).  If ssmtp 
can't connect to the mailhub it just barfs and dumps the email in 
~/dead.letter on distributed host de'jour.   This makes system 
administration a nightmare because if you are doing maintenance on the 
mailhub used by ssmtp then you never if you have to go check for 
dead.letters, let alone on which remote ssmtp host.

Does anyone know of a simple, scaled down, command line mailer that:
    -doesn't require a running daemon
    -supports more than 1 mailhub to forward mail
    -will spool and retry sending failed deliverables

thx,

-Jim P.