Re: [2] sendmail won't send to AOL + MSN

[Adam Jacob <adam cybertrails com>]

On Tue, May 11, 1999 at 07:33:47AM -0700, Matt Quelch wrote:
> My mailserver has a valid internet HOST name.
> 
> I am also experiencing problems where remote SMTP mailservers including 
> sendmail servers are unable to send to my mailserver.!
> 
> 
> How can i test 'my' DNS servers for reverse lookups of my mailserver.

	From the command line, do something like the following:

[adam pendragon adam]$ nslookup
Default Server:  cybertrails.com
Address:  162.42.150.33

> set querytype=PTR
> 60.150.42.162.in-addr.arpa
Server:  cybertrails.com
Address:  162.42.150.33
 
60.150.42.162.in-addr.arpa	name = pendragon.cybertrails.com
150.42.162.in-addr.arpa	nameserver = who.cybertrails.com
150.42.162.in-addr.arpa	nameserver = creedence.cybertrails.com
who.cybertrails.com	internet address = 162.42.150.33
creedence.cybertrails.com	internet address = 162.42.150.47

	The "60.150.42.162.in-addr.arpa = pendragon..." line shows
that that address reverses correctly to pendragon.cybertrails.com.

	Replace the 60.150.42.162 with your ip-address backwards
in the query, and you are good to go.

			Adam

-- 
+-------------------------------------------------------------------+
|  Adam Jacob - Cyber Trails     | "A monkey screams into an        |
|  Sr. Systems Administrator     |  ethernet cable, and Sendmail    |
|  <adam cybertrails com>        |  sends it somewhere."            |
+-------------------------------------------------------------------+
 Phone - (602)906-1752   Pager - (602)447-9531   Fax - (602)906-1799