Is there a lightweight MTA for Ubuntu 9.10 Desktop? [closed]

I'm writing a Perl script to run as a cron job, and I want to email results & errors to a local account on the laptop. I'd like something that can talk SMTP (do any MTAs not adhere to SMTP?). I use Thunderbird 3, so I'll also need a POP/IMAP server (unless T-Bird can read straight from an mbox file; I'll have to check into that). No need for spam controls as I'll lock it down real tight, only accepting mail originating from the laptop itself. Thanks!

Install Postfix, configure it for the local network and make it listen only to the loopback-interface.

If you have an external mailbox ready and only want to send emails to it, you could probably just install ssmtp and be happy.

there's ssmtp, right there in the standard repositories

Check out Nullmailer. I think it is the best lightweight mail transfer agent for ubuntu and other Linux. Hopefully that is what you are looking for.