Hi After upgrading our outgoing mail servers from exim 3.6 to exim 4.5, a lot of customers are unable to send mail. There appears to be a major difference in how host authentication is done.
Previously, exim3 took the IP address of sending host, did a reverse lookup to get a host name and looked for a match in a file. If the customer domain was example.com, there would be 2 lines in the file for example.com and *.example.com. This worked well. Not so in exim4! Some of our customers have dodgy DNS. So after getting the host name, instead of looking for a match in the file, exim4 instead goes and does a forward lookup on the host name and comes back with NXDOMAIN. Exim4 reports that it couldn't find the hostname. Now I know it would be great if our customers had their DNS correct but that will take a long time to get them sorted, so how do I make it work like exim3? On a domain basis, I can add '+include_unknown' which works. However 'accept hosts = +include_unknown:+relay_hosts' does not. Can you help? Thanks, Martin -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
