Dear Interwebs: Secure SMTP Relay Wanted
I'm looking for a basic SMTP relay which supports SMTP AUTH, TLS, supports the sendmail interface, and has a local mail queue, so that I can send mail from my laptop in Evolution (to localhost, or calls sendmail) and the shell (calling sendmail) when online or offline.
I need SMTP AUTH and TLS, which means nbsmtp, masqmail, and nullmailer are out. I want a local queue for when I'm not online which means esmtp, ssmtp, msmtp, and nullmailer are out (I'm not convinced that msmtp's queue scripts are reliable enough). Surely there must be a simple SMTP relay which will reliably manage a queue if the mail cannot be sent! If not, does anyone know of a good guide to configuring Postfix or Exim to do this?
