[cobalt-users] User unknown error ... DNS config problem?

[Scott Elliott <selliott@xxxxxxxxxxxxxxxxxx>]

This is a re-post (slightly edited) of a previous message that appeared
in this list, but the lines weren't "word wrapped"...apparently
GroupWise doesn't wrap long lines on outgoing messages. Hopefully that's
why I got no responses to my problem.

____________________
I have a RaQ3i that is colocated at our Web hosting partner (external to
our company). There are 5 Web sites on it, each with its own domain
name. The RaQ3i accepts mail for 3 of the domains, and the mail for the
other two domains (caeultrasonics.com and caegreasemonkey.com) is
supposed to be forwarded to our internal mail server. I do not handle
the DNS...my hosting partner does.

When sending mail from the RaQ3i (using pine, sendmail--see below, or
the PHP mail function) to caeultrasonics.com or caegreasemonkey.com I
get a "User unknown" error. I have checked every place I can imagine to
see if I have a configuration setting screwed up, but it all looks right
to me.

Cobalt GUI stuff...
****************
SITE MANAGEMENT (for both of the trouble domains)
- Each has own IP, both have host name of "www"
- Accept Email for Domain is unchecked
- Web Access by Domain is unchecked
USER MANAGEMENT
- caeultrasonics.com has one user defined, no email aliases
- caegreasemonkey.com has no users defined
SERVER MGMT --> CONTROL PANEL --> EMAIL SVR PARAMETERS
- Relay for domains list has only the three domains that the RaQ accepts
mail for (although I did put in caeultrasonics.com and
caegreasemonkey.com AND their respective IP addresses with no luck)
- Host/Domain Aliases lists only the domains that it accepts mail for.

Command line stuff...
****************
nslookups from authoritative server
****************
caeultrasonics.com
        origin = www.interlattice.com
        mail addr = root.www.interlattice.com
        serial = 2000081012
        refresh = 10800 (3H)
        retry   = 3600 (1H)
        expire  = 604800 (1W)
        minimum ttl = 86400 (1D)
caeultrasonics.com      nameserver = www.interlattice.com
caeultrasonics.com      preference = 30, mail exchanger =
mail.caeultrasonics.com
caeultrasonics.com      internet address = 63.170.169.130
caeultrasonics.com      nameserver = www.interlattice.com
mail.caeultrasonics.com internet address = 208.3.190.129
****************
caegreasemonkey.com
        origin = www.interlattice.com
        mail addr = root.www.interlattice.com
        serial = 2000081012
        refresh = 10800 (3H)
        retry   = 3600 (1H)
        expire  = 604800 (1W)
        minimum ttl = 86400 (1D)
caegreasemonkey.com     nameserver = www.interlattice.com
caegreasemonkey.com     internet address = 63.170.169.129
caegreasemonkey.com     preference = 30, mail exchanger =
mail.caeultrasonics.com
caegreasemonkey.com     nameserver = www.interlattice.com
mail.caeultrasonics.com internet address = 208.3.190.129
****************
sendmail troubleshooting (note: elliottnet.com is one of the local
domains)
****************
# /usr/sbin/sendmail -bv selliott@xxxxxxxxxxxxxxxxxx
selliott@xxxxxxxxxxxxxxxxxxxxx User unknown
# /usr/sbin/sendmail -bv selliott@xxxxxxxxxxxxxxxxxxx
selliott@xxxxxxxxxxxxxxxxxxxxxx User unknown
#/usr/sbin/sendmail -bv scott@xxxxxxxxxxxxxx
scott@xxxxxxxxxxxxxxxxx deliverable: mailer local, user scott
#/usr/sbin/sendmail -bv scott@xxxxxxxxxxxxxxxxxx
scott@xxxxxxxxxxxxxxxxxxxxx deliverable: mailer local, user scott
# /usr/sbin/sendmail -bv scott@xxxxxxxxxxxxxxxxxxx
scott@xxxxxxxxxxxxxxxxxxxxxx deliverable: mailer local, user scott

(Also: selliott@xxxxxxxxxxxxxxxxxxxxxxx and
selliott@xxxxxxxxxxxxxxxxxxxxxxxx gets delivered just fine.)

That's where I'm at. Let me know if there's anything else that would
help pinpoint the problem.

My guess (FWIW) is that something is telling sendmail to deliver
caeultrasonics.com and caegreasemonkey.com locally, in spite of the MX
records and configuration files that tell it otherwise. I honestly have
no idea what that something is, though! (I'm a recent Linux convert...)

Scott Elliott
IT Manager
selliott@xxxxxxxxxxxxxxxxxx

(Disclaimer: CAE Ultrasonics takes no responsibility for my posts. If I
offend you, they don't want to be blamed.)