Checking the /var/log/mail.err file I see
postfix/sendmail: fatal: open /etc/postfix/main.cf: No such file or directory
(and a bunch of other similar ones)
One quick google later, and it turns out that, even though it was a clean install of the mail program, the config files didn't get written out properly.
To fix it, I did
sudo dpkg-reconfigure postfix
Which runs the setup that ran when mail was originally installed.
|The PostFix Configuration Wizard! |
(check out the 1990s ANSI styling)
That seems to have fixed the problem, and all the mail that was queued came through.
One to remember - so I thought I'd chuck it on t'blog.