Re: [gentoo-user] /etc/resolv.conf and return mail
Hi, On Tue, 12 Apr 2005 06:09:31 -0700 (PDT) Michael Sullivan [EMAIL PROTECTED] wrote: My mail server attempts to deliver the outgoing email, but returns the mail to the user who sent it with an error message. The interesting thing is that I can ping the address of the recipient mail servers at Yahoo and Gmail, but I cannot telnet to their port 25. I don't know if this is my problem or theirs, and if it is theirs I don't know how to notify them of it. Does not sound like a DNS issue. I suspect your ISP has activated new filter rules denying access to outside servers' port 25. Maybe they had a few spammers on their net... I'd bet they tell you to ask their smtp for relaying if you ask their support. That shouldn't be too hard to setup on your mail server. Maybe they insist in using SMTP-Auth for additional security when a non-local mail address is used as envelope from. HWH -- gentoo-user@gentoo.org mailing list
RE: [gentoo-user] /etc/resolv.conf and return mail
Is there a way to query my router for DNS information and use that instead of the two hard-coded IP addresses in /etc/resolv.conf? Here is the /etc/resolv.conf file on my server box: domain espersunited.com nameserver 192.168.1.1 nameserver 24.116.0.160 nameserver 24.116.0.202 The 192.168.1.1 is the address of my router. Your router should have a status page (I know there's one on my netgear and linksys routers) that shows the ip address and dns servers that were assigned via dhcp. But your local router at 192.168.1.1, being in the /etc/resolv.conf file, must be acting as a caching dns proxy which means that it would internally have it's own resolv.conf file updated with those values from the ISP. So the fact that the bounces are occurring because of dns seems odd. Are you sure it's actually a dns issue? My mail server is configured to connect to my isp to relay outgoing mail (some folks will block email if it originates from a non-static entity); if, for example, you were configured to upload to mail.cableone.net (or whatever), it might be there where the failure is occurring. What you really need to do is dig into your syslog and see what the error is that your mailer is reporting; that's going to indicate what you need to do to resolve it. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] /etc/resolv.conf and return mail
On Tue, April 12, 2005 9:09 am, Michael Sullivan said: snip The interesting thing is that I can ping the address of the recipient mail servers at Yahoo and Gmail, but I cannot telnet to their port 25. /snip are you sure your ISP doesn't block outgoing port 25 connections? I would check with them first as that's what it looks like. I know my ISP (RCN) blocks both outgoing and incoming port 25. HTH -R'twick -- gentoo-user@gentoo.org mailing list
