qmail error resolution: sorry, although i'm listed as a best-preference mx for that host, it isn't in my control/locals file.
today, i had to reenable a domain through plesk. once the guy's site was up and running, he said that he couldn't receive email. i sent him a test email and had the following message:
Sorry. Although I'm listed as a best-preference MX or A for that host, it isn't in my control/locals file, so I don't treat it as local. (#5.4.6)
how come? i honestly never saw this problem before.
well, qmail/plesk stores the hostname in a file located in /var/qmail/control/rcpthosts. i checked and it was there. so what gives?
my guess is that plesk did things too quickly, or not well enough. i ended up having to restart qmail. after that was done, he began receiving his messages again.