>One of our users is receiving the following error message when one of
>his clients tries to send him email. It *appears* that the host
>resolution problem is occuring on the client site.
that's not what the first error says, gotta RTFEM
> > The following recipient(s) could not be reached:
> >
> > '[EMAIL PROTECTED]' on 01/08/2001 8:16 PM
> > The recipient name is not recognized
This is aka "unknown recipient@ ", NOT unknown "@recipientdomain"
Is "john.doe" a valid account on your Imail's e-pubcorp.com mail host?
> > The MTS-ID of the original message is: c=US;a= ;p=Mobius
> > Group;l=RDUMAIL-010107011536Z-3
> > MSEXCH:IMS:Mobius Group:RTP:RDUMAIL 3499 (000B09AA) network
> > error during host resolution
this IS a host resolution error, so let's look:
A record is ok:
# dig e-pubcorp.com a
; <<>> DiG 8.2 <<>> e-pubcorp.com a
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
;; QUERY SECTION:
;; e-pubcorp.com, type = A, class = IN
;; ANSWER SECTION:
e-pubcorp.com. 3h37m34s IN A 209.151.86.12
but MX record is absent:
# dig e-pubcorp.com mx
; <<>> DiG 8.2 <<>> e-pubcorp.com mx
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;; e-pubcorp.com, type = MX, class = IN
Since there is no MX, the SMTP sending machine will try to send to
e-pubcorp.com's A record which I guess isn't the same ip/box as your
Imail box, so "unknown user" at that A record's ip. Fix your DNS.
Also, I bet you have an SMTP service running on the A record's
machine. Is that what you want?
Also, ns2.iex.net is not answering authoritatively for e-pubcorp.com.
Len
http://BIND8NT.MEIway.com : Binary for ISC BIND 8.2.3 T9B for NT4 & W2K
http://IMGate.MEIway.com : Build free, hi-perf, anti-spam mail gateways
Please visit http://www.ipswitch.com/support/mailing-lists.html
to be removed from this list.
An Archive of this list is available at:
http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
