Just went through this last night. 1) Setup a second DNS MX entry for you domain with a higher numbered entry pointing to your secondary server 2) Setup a custom domain on your secondary server with an "smtprelay" statement pointing to your primary server 3) Adjust the smail command line setting that determine how long xmail will try to send undelivered mail and how often it tries. 4) done
Your secondary server will keep trying to deliver any mail it has for your primary server based upon the smail command line settings. So when your primary comes back online any mail the secondary has for it will be delivered. You can't connect via pop to the secondary server as it will not have any accounts setup, it's just holding the mail and then relaying it to the primary when it becomes available. You can if you want setup virus and spam scanning on the secondary so that it reduces what has to be delivered to the primary. Plus some spammers like to deliver mail to secondary servers thinking that only the primary scans and they might get around scanners by going to the secondaries. Bill >---------- >From: Freddy[SMTP:[EMAIL PROTECTED] >Sent: Wednesday, June 29, 2005 4:06 AM >To: xmail@xmailserver.org >Subject: [xmail] Re: Backup server > > >Hi Everyone > >I have a question about backup servers... > >At present i have my server working fine on one domain, however it only >has one dsl line, for redundency i want to add a backup server, just in >case of any network or power outage. > >What methods are there of creating this backup server? > >I have a additional server setup the same as my first server on a >different external (ie not internal of the network) IP address, however >how do i make incoming mail go to the backup server when there is any >outage? >When the main server comes back up, how do I then move the mail (that >has not been collected by POP) back to the main server? >What about when connecting via POP to the backup server? will this >happen automatically? > >Many Thanks >Freddy >- >To unsubscribe from this list: send the line "unsubscribe xmail" in >the body of a message to [EMAIL PROTECTED] >For general help: send the line "help" in the body of a message to >[EMAIL PROTECTED] > > - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]
