Imail can be a backup mail server. See the KB article: http://support.ipswitch.com/kb/IM-19980116-JB14.htm
Backup mail servers don't necessarily deliver mail to the primary server immediately when it comes back online. They try to deliver it just like any other email, once when it is first received and then again and again according to the mail server's settings for retrying sends. Alternatively, the primary mail server can request that all mail being stored for it be delivered by sending the backup server the "ETRN domainname.tld" command. Automating that command (for example, run it whenever the mail server starts up) would probably be the easiest way to get backup servers to send email immediately. Most of this is described, with specific references to Imail, in the above article. Daniel >I've read Len's website on setting up a >FreeBSD-based ETRN servers when the current >mail server is down. > >However, I'd like to build a backup MX server >but running on Windows 2000. > >Can anyone recommend on a solution? Free >or shareware is fine. > >I'd also like to confirm that the purpose of >ETRN server is to "collect mail for the downed >server", and when the "downed server" gets up, >it *immediately* gets back everything from the >ETRN ? > >MUST the operating mailserver have a feature >that says "ETRN supported" before I can embark >on such a setup? Does IMail and Mailmax have >such a feature? > >Thanks, >John > >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 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/
