Hi,
I've read up a little on this, but couldn't search the archives (maybe the server is down?) for any more information. Anyway, from my understanding, if the qmail server can't resolve it's DNS entry, it will have problems with SMTP, and I believe that to be the problem. However, I haven't been able to find a resolution for my situation. Here's how things are configured in my environment:
The server is using a private ip address (192.168.x.x) behind a load balancer. The load balancer runs NAT so the server can send data out. The load balancer also contains a routable ip address, for which, all traffic passes back to the private ip. There is a DNS entry for the routable ip, but not for the private ip. The qmail server is setup with the same name as the DNS entry for the routable ip. As qmail runs on DNS entries, I would assume this would make everything ok. It doesn't. When I telnet to the localhost on port 25, I get a connection and it just sits there. No response, ever. Below is the output of qmail-showctl just to make sure I haven't done anything wrong. Any suggestions?
qmail home directory: /var/qmail.
user-ext delimiter: -.
paternalism (in decimal): 2.
silent concurrency limit: 120.
subdirectory split: 23.
user ids: 101, 102, 103, 0, 104, 105, 106, 107.
group ids: 100, 101.
badmailfrom: (Default.) Any MAIL FROM is allowed.
bouncefrom: (Default.) Bounce user name is MAILER-DAEMON.
bouncehost: (Default.) Bounce host name is slgpmail1.sl.ca.
concurrencylocal: (Default.) Local concurrency is 10.
concurrencyremote: (Default.) Remote concurrency is 20.
databytes: (Default.) SMTP DATA limit is 0 bytes.
defaultdomain: Default domain name is sl.ca.
defaulthost: (Default.) Default host name is slgpmail1.sl.ca.
doublebouncehost: (Default.) 2B recipient host: slgpmail1.sl.ca.
doublebounceto: (Default.) 2B recipient user: postmaster.
envnoathost: (Default.) Presumed domain name is slgpmail1.sl.ca.
helohost: (Default.) SMTP client HELO host name is slgpmail1.sl.ca.
idhost: (Default.) Message-ID host name is slgpmail1.sl.ca.
localiphost: (Default.) Local IP address becomes slgpmail1.sl.ca.
locals:
Messages for slgpmail1.sl.ca are delivered locally.
me: My name is slgpmail1.sl.ca.
percenthack: (Default.) The percent hack is not allowed.
plusdomain: Plus domain name is sl.ca.
qmqpservers: (Default.) No QMQP servers.
queuelifetime: (Default.) Message lifetime in the queue is 604800 seconds.
rcpthosts:
SMTP clients may send messages to recipients at slgpmail1.sl.ca.
morercpthosts: (Default.) No effect.
morercpthosts.cdb: (Default.) No effect.
smtpgreeting: (Default.) SMTP greeting: 220 slgpmail1.sl.ca.
smtproutes: (Default.) No artificial SMTP routes.
timeoutconnect: (Default.) SMTP client connection timeout is 60 seconds.
timeoutremote: (Default.) SMTP client data timeout is 1200 seconds.
timeoutsmtpd: (Default.) SMTP server data timeout is 1200 seconds.
virtualdomains: (Default.) No virtual domains.
defaultdelivery: I have no idea what this file does.
concurrencyincoming: I have no idea what this file does.
Thanks,
Mark Douglas - Architecture
Sympatico-Lycos Inc.
All your base are belong to us! Make your time!
