Really strange problem - qmail starts and runs fine, sending out our weekly
newsletter. A couple of days later, sending email from a workstation to
the sever via SMTP won't work. Running ps shows that all necessary
services are up and running, a port scan shows # 25 as listening, but
doesn't get a "220 mail.mydomain.com ESMTP..." response. A soft reboot
doesn't always fix it; though powering it off for a minute does. After
that, it'll run hundreds of thousands of messages or so, and mysteriously
stop. Don't see anything strange on the system logs either. Any ideas?
