Len, Thanks for this help. Just to make sure I understand though ...
All I need to do to act as a backup mail server is: 1. Set SMTP Security to "Relay Mail for ... Addresses"; and 2. Put in a new line in my hosts file for each domain to be backed up, for example: xxx.xxx.xxx.xxx primaryserver1.com xxx.xxx.xxx.xxx primaryserver2.com I understand, of course, that the DNS records have to be set up with my server as an MX record with the correct priority. I also understand I could put in other selections on the SMTP Security tab, but "Relay Mail for ... Addresses" seems to be the best option to avoid open relay issues. Thanks very much for confirmation that I read your note correctly. Regards, Paul > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Len Conrad > Sent: Thursday, March 28, 2002 2:09 PM > To: [EMAIL PROTECTED] > Subject: Re: [IMail Forum] Little help on "Relay Mail for ... Addresses" > option please > > > > >I'm a tad confused on the "Relay Mail for Addresses" option on the SMTP > >Security tab. If my mail server is to be used as a backup mail > server, can I > >use this option? > > yes > > >I need to back up several mail servers, all of which I obviously > know the IP > >addresses for. If those mail servers are down and the mail gets > sent to my > >mail server (as secondary mail server in DNS records), will my > server hold > >and then forward when possible? > > yes, for incoming, you have to put all the ip+hostnames in hosts > file. This is both "accept for @recipientdomain" plus "route > @recipientdomain mail to ip" setting. > > >More simply: does "Relay Mail for Addresses" allow mail relay > when the mail > >is DESTINED FOR the defined addresses > > no, hosts file handles incoming mail, "relay for addresses" opens the for > outgoing mail. > > Len > > > http://MenAndMice.com/DNS-training > http://BIND8NT.MEIway.com : ISC BIND for NT4 & W2K > http://IMGate.MEIway.com : Build free, hi-perf, anti-abuse mail gateways > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > to be removed from this list. > > An Archive of this list is available at: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > > Please visit the Knowledge Base for answers to frequently asked > questions: http://www.ipswitch.com/support/IMail/ > Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
