When emails don't go through to NT side

When DNS updated or upgraded, the DNS server may not allow zone-transfers by the Alpha system. This will result in emailed messages
from the Alpha to stay "pending" in the tcpip$smtp server que.

On 12/8/05, Tom (ESP) wrote the following:

If I query for resolution of STGREGORYS.EDU I receive:

$ ucx show host stgregorys.edu
     BIND database
Server:   172.30.254.98    dhcp-print.stgregorys.edu
Host address    Host name
172.30.254.110 STGREGORYS.EDU
172.30.254.95   STGREGORYS.EDU
172.30.254.88   STGREGORYS.EDU
172.30.254.90   STGREGORYS.EDU
172.30.254.87   STGREGORYS.EDU
172.30.6.115    STGREGORYS.EDU
172.30.6.101    STGREGORYS.EDU
172.30.6.146    STGREGORYS.EDU
172.30.5.56     STGREGORYS.EDU
172.30.5.10     STGREGORYS.EDU
172.30.5.245    STGREGORYS.EDU
172.30.5.180    STGREGORYS.EDU
172.30.5.154    STGREGORYS.EDU
172.29.1.10     STGREGORYS.EDU
172.16.22.160   STGREGORYS.EDU

If I attempt to use NSLOOKUP from the Alpha to query the DNS for MX records I receive:

> ls -m stgregorys.edu
[dhcp-print.stgregorys.edu]
*** Can't list domain stgregorys.edu: Unspecified error
>
ls -m stgregorys.edu.
[dhcp-print.stgregorys.edu]
*** Can't list domain stgregorys.edu.: Unspecified error
>

Without MX redirection, the system will attempt to deliver to the first resolution (172.30.254.110) which most likely is not the mail server. The resolution is to either correct the protection for zone-transfers, or put an entry in the local host table for STGREGORYS.EDU which points to your mail server.

$ UCX SET HOST STGREGORYS.EDU/ADDRESS=xxx.xxx.xxx.xxx

Tom Rudolph
Product Development
Educational Systems Products

11415 East 19th Street, Suite B, Tulsa OK 74128

(918) 437-4920 x202