On Sat, Oct 13, 2007 at 05:45:14PM +0800, John Summerfield wrote: > Sendmail deduces the from: user's email address from the domain name of > the system. I am sure that it can be set properly in > /etc/mail/sendmail.*, but being a postfix user I don't care to check. > However, postfix also needs to be configured: on my desktop whose > hostname is numbat.demo.lan, mail sent with the mail command isn't > accessible outside my LAN because sensible folk reject/discard email > from domains they can't resolve. > Note that the mail command does little more than pretty-up the email and > feed it into sendmail's stdin. The beautification doesn't extend to > setting the from: address. cron simply used the mail command to send email. I too configure postfix to handle local mail that does not get outside my home network. But postfix does not come as the default MTA, sendmail does! So I would have expected either a release note on how to configure sendmail to allow local mail delivery (ie cron/anacron/mail) to function smoothly or a default configuration that already included this setup. Most newbies will end up being on 'localhost.localdomain'. The default is rather sloppy in my opinion. Alexander
