--On Wednesday, April 13, 2011 17:54 +0200 Mogens Melander <mogens@xxxxxxxxxxxxx> wrote: > Ok, thanks anyway. > > How are you doing it? sendmail <-> cyrus imapd. Gateway columbia.edu resolves virtusers, aliases, users, to the correct destination for that end user, which might be our Cyrus cluster or our Exchange cluster or forwarding elsewhere. For Cyrus users, gateway re-sends (smtp) to the end user @ the cyrus cluster's hostname. On the cyrus hosts, all they have to do is deliver to the user given in the address. There are no virtuser or alias tables there. There IS an access.db that tells these hosts to accept mail only from the gateway. Joseph Brennan Columbia University Information Technology ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/