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David Sugar [DSugar at boyslatinmd.com]
Mon, 14 Aug 2006 14:54:07 -0400
I am having an issue sending out e-mails from my linux box. Here is the issue:
I am getting the message
"host map: lookup (boyslatinmd.com): deffered"The linux machine is named reeses.boyslatinmd.com (10.1.10.65 internal address)
All mail for the boyslatinmd.com domain is handled by email.boyslatinmd.com (10.1.10.4 internal address)
I have tried setting up domain routing using sendmail and nothing seems to work using either the ip address or host name. I have even tried sending mail directly to the internal ip address and it doesn't work. Please help ASAP as I am trying to get a helpdesk server setup before the school year in about 2 weeks.
Thanks for the help.
David
David Sugar Administrative Technology Coordinator The Boys' Latin School of Maryland 822 West Lake Avenue Baltimore, MD 21211 410-377-5192 x.
Neil Youngman [ny at youngman.org.uk]
Tue, 15 Aug 2006 06:50:33 +0100
On or around Monday 14 August 2006 19:54, David Sugar reorganised a bunch of electrons to form the message:
> I am having an issue sending out e-mails from my linux box. Here is the > issue: > > I am getting the message > > "host map: lookup (boyslatinmd.com): deffered" > > The linux machine is named reeses.boyslatinmd.com (10.1.10.65 internal > address) > > All mail for the boyslatinmd.com domain is handled by email.boyslatinmd.com > (10.1.10.4 internal address)
How is that set up? Looked at from outside the MX (Mail eXchanger) record seems to point to servers at appriver.com
neil ~ 21:55:34 501 > dig mx boyslatinmd.com ; <<>> DiG 9.3.2 <<>> mx boyslatinmd.com ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54535 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;boyslatinmd.com. IN MX ;; ANSWER SECTION: boyslatinmd.com. 21600 IN MX 10 server21.appriver.com. boyslatinmd.com. 21600 IN MX 20 server22.appriver.com. ;; Query time: 162 msec ;; SERVER: 192.168.1.1#53(192.168.1.1) ;; WHEN: Mon Aug 14 21:55:53 2006 ;; MSG SIZE rcvd: 92 neil ~ 21:55:53 502 >
> I have tried setting up domain routing using sendmail and nothing seems to > work using either the ip address or host name. I have even tried sending > mail directly to the internal ip address and it doesn't work. Please help > ASAP as I am trying to get a helpdesk server setup before the school year > in about 2 weeks.
but Googling for that error message gives me https://www.brandonhutchinson.com/host_map__lookup_(domain)__deferred.html, which suggests that it's a DNS problem and something like "sendmail -v -d8.32 -qImessage_ID" should provide some extra information.
You could also help us by saying exactly what you tried and what effect it had, e.g. the exact domain routing settings in your configuration, the changes you made and the error messages for each version.
When you say you tried sending directly to the internal IP address, could you clarify exactly what you did to achieve this and exact error messages received.
I don't use sendmail myself, perhaps someone else on the gang can help you dig a bit deeper?
Neil Youngman