Reverse Dns Does Not Match Smtp Banner
Voytek Eymont: I'm setting up a mail server on a virtual server smtp banner is set to myhost.mydomain reverse dns resolves to the data centre IP address is that going to cause me problems in the future?Assuming that the Postfix machine is behind a NAT of some kind:myhostname: use the name of the internal IP addresssmtpdbanner: use the name of external IP addresssmtpheloname: use the name of external IP addressDon't listen to people who say use myhostname in smtpdbanner.WietseReindl Harald09.04.11 06:02. On Sat, April 9, 2011 10:58 pm, Wietse Venema wrote: is that going to cause me problems in the future?Wietse, thanks Assuming that the Postfix machine is behind a NAT of some kind:NO, the machine is main mail server with public IP myhostname: use the name of the internal IP address smtpdbanner: use the name of external IP address smtpheloname: use the name of external IP address Don't listen to people who say use myhostname in smtpdbanner.-VoytekWietse Venema09.04.11 07:47.
Reverse Dns
Reindl Harald: Assuming that the Postfix machine is behind a NAT of some kind: myhostname: use the name of the internal IP address smtpdbanner: use the name of external IP address smtpheloname: use the name of external IP address Don't listen to people who say use myhostname in smtpdbanner:-) i would use the same hostname in fornt of and behind the NAT because normally in the LAN behind the nat a name-server is running, so there is no difference NAT/PublicMy configuration supports multiple inside Postfix servers. Eachuses its own unique internal name in myhostname, while they allshare the same external name in smtpdbanner and smtpheloname.There is a patch lying around somewhere that allows an SMTP serverbehind nat/balancer to log its own myhostname in the end-of-datareply.
Reverse Dns Does Not Match Smtp Banner
This would simplify logfile searches, but has lost someurgency with the introduction of non-repeating queue IDs.WietseWietse Venema09.04.11 07:48.
Reverse Dns Does Not Match Smtp Banner Plesk
You can only do this if each domain name has it's own IP#. The exim.conf file must be modified so it will look up the servername/ip# pair for each domain name, and send under that servername, from that IP#.