My ISPConfig3 on Debian installed following Perfect Lenny guide has been working well until I tried to "fix" it after a power outage. I have a single domain, brat.com, which has a single mailbox, higene. In my haste to recover from a power outage, I deleted my Email Domain entry in ISPConfig. When that happened, my mailbox for higene was deleted. I added back my email domain, brat.com, and I added back my mailbox, higene "at" brat.com. Now I cannot receive email (the bounced email says, "mail for brat.com loops back to myself" And my mail logs show the following error: Mar 25 11:12:34 brat02 postfix/trivial-rewrite: warning: do not list domain brat.com in BOTH virtual_mailbox_domains and relay_domains What have I done to my setup? I know that I've created a mail loop, but I don't understand why?