1). Never run Sendmail.
2). Doesn’t care if their SMTPD is not GPL-compatible (Postfix ain’t).
3). Too much free time and not enough experience.
I’m psyched for this. I’d love to see an SMTPD that
1). Has configuration files that need not be treated as binaries.
2). Is resource-friendly.
3). Is sysadmin-friendly.
4). Is secure.
In my experience, the OpenBSD crowd is among the most likely subset of Free Software and open source hackers able and willing to deliver on this wishlist.
Make me happy, guys!