On Mon, Dec 05, 2005 at 05:51:13PM -0500, [EMAIL PROTECTED] wrote: > Fellow debian users-- > > I recently setup a box to act as a mail (qmail) and DNS (bind9) server. > Because I only have one external IP address, this machine is accesible > through a main server by means of forwarded ports using iptables. For > example, if you telnet into port 25 of my main server, you are actually > opening a connection on the mail and dns server.
It's one way of doing it.. > My question is that I notice that it often takes long (15min +) to > receive certain emails, and I cannot figure out why. If I send myself an > email (from an external network) by a telnet SMTP session on my main > server, the email appears right away. However, if I send an email to the > same address using Gmail (I replicated the problem in other > clients, but it happen more often with emails sent from Gmail), then it > takes a while to show up. This leads me to think that it may be a > DNS rather than mail problem, but I am not sure. Well, this is rather foggy. All of this can be checked. If you don't see any action beforehand from any mailserver you send a mail from (gmail in this example), you know the setup you chose isn't the issue. Now, dns is a bit more tricky. There are multiple sites that can preform a check if you have setup your mailserver the "right" way, and if it respons is sane. http://www.dnsreport.com/ -- TC, ,Mark -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]