Tim Hosking writes:
> That's odd. I have a similar set-up and it just works. I don't have to do > anything to have the mail relayed to the primary when it comes back online. > Assuming that the backup server has an entry for the primary's domain in > esmtpacceptmailfor.dir/accept and that domain is not listed in locals or > hosteddomains then the forwarding should be automatic. > > I don't pretend to know exactly how this is achieved or indeed if I am > correct in the above statements, but it sounds to me as if you have a This is correct. This is achieved simply by following the instructions in INSTALL: Define local domains The configuration file /usr/lib/courier/etc/locals is a list of all the domains that are considered local. Mail to any address in any local domain is handled as a local delivery. If this file does not exist Courier will use the contents of the me configuration file, or it will obtain its machine name from the operating system. This file contains a list of domains, one per line. In most cases you need to initialize this file to contain every hostname that has a DNS A, or AAAA, record pointing to any IP address assigned to this machine, including "localhost". ... Create a list of domains to accept mail for If you would like your server to function as a backup mail relay for other domains, create /usr/lib/courier/etc/esmtpacceptmailfor. This is a plain text file, containing a list of domains, one per line. This file lists all domains your server will accept mail for. NOTE: if you create this file, you MUST include all your local domains. Usually you can simply append what you have in /usr/lib/courier/etc/locals. If you've followed these instructions to the letter, Courier will correctly function as a backup MX. The most common cause of backup MX misconfiguration is forgetting to list all hostnames with one of your A/AAAA records in locals (or hosteddomains). If that happens, Courier may not see itself listed as an MX for a given domain, and treat it no differently than any other remote domain, and ending up looping all mail to itself, until it bounces. -- Sam _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
