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Unable to mail from exchange to hpux

CJENSEN_1
Regular Advisor

Unable to mail from exchange to hpux

Hello gurus,
I am setting out our new HPUX server, which runs HPUX 11.31. I can send emails from HPUX to exchange. However, I cannot email from my exchange account to root@servername.domain (the HPUX server). I am getting the following:
"The e-mail address could not be found. Perhaps the recipient moved to a different e-mail organization, or there was a mistake in the address. Check the address and try again.
Any ideas?
10 REPLIES
Steven Schweda
Honored Contributor

Re: Unable to mail from exchange to hpux

> [...] our new HPUX server [...]

Actual output from "uname -a" might be nice.

> [...] I am getting the following:
> [...]

From whom? Exchange? If all your e-mail
goes through Exchange, then you may need to
tell Exchange about this new user.

Are you running sendmail (or anything
similar) on the HP-UX system? (That is, is
there a program running on the HP-UX system
which can receive e-mail?)
CJENSEN_1
Regular Advisor

Re: Unable to mail from exchange to hpux

1) The server is a RX3600, running HPUX 11.31, 64 bit.
2) The bounce back email is delivered to my Microsoft Outlook inbox, from the Microsoft Exchange server.
3) I am running the sendmail which came with the server.
4) I am able to successfully send an email from HPUX, user root, to exchange, and this successfully routes to my exchange inbox.
Thanks...colin
Dennis Handly
Acclaimed Contributor

Re: Unable to mail from exchange to hpux

>4) I am able to successfully send an email from HP-UX, user root, to exchange

Are you able to send from HP-UX back to HP-UX using a FQDN path?
Any info on the mail logs on HP-UX?
CJENSEN_1
Regular Advisor

Re: Unable to mail from exchange to hpux

Logged into the HPUX server as root, I can successfully send mail to root by this command: mailx -s "test" root@servername.domain < /dev/null
Steven Schweda
Honored Contributor

Re: Unable to mail from exchange to hpux

> [...] I can successfully send mail to root
> [...]

So, as I understand it, your HP-UX system can
send e-mail and receive e-mail, but your
Exchange system won't send e-mail to your
HP-UX system. And you still think that the
problem lies with the HP-UX system?

> [...] servername.domain [...]

Hiding what could be important details may
not be ideally helpful.

I know nothing about Exchange, but if it
believes that it already knows what to do
with e-mail sent to anyone@anything.domain,
then it may not seriously consider sending it
along to any other system. Knowing nothing
about Exchange, and no more than that about
how your Exchange system is configured, it's
hard to do more than guess what might be
happening.

> Any info on the mail logs on HP-UX?

Does Exchange record any useful info about
its failing transactions?
CJENSEN_1
Regular Advisor

Re: Unable to mail from exchange to hpux

I will attach a screenshot of the hpux mail log. I cannot check the exchange server until next Tuesday, as I don't have access. Your help is appreciated...colin
Steven Schweda
Honored Contributor

Re: Unable to mail from exchange to hpux

> I will attach a screenshot of the hpux mail
> log. [...]

".docx"? What's wrong with plain text (which
I might be able to read easily without buying
some Microsoft product)? Isn't the log file
plain text?
CJENSEN_1
Regular Advisor

Re: Unable to mail from exchange to hpux

Please find attached the text file. Thanks for you help...colin
Steven Schweda
Honored Contributor

Re: Unable to mail from exchange to hpux

> [...] Domain of sender address [...] does
> not exist

_That_ looks more like a sendmail problem
(or at least a problem on the system where
sendmail is running).

Sendmail is normally configured to reject
e-mail from unrealistic addresses. This
address seems to be ok from here, so if
sendmail on your HP-UX systems doesn't
agree, then I'd suspect the DNS resolver
configuration on your HP-UX system.

What's in?:

/etc/nsswitch.conf
/etc/resolv.conf

I'd guess that when this works:

nslookup

sendmail may be more willing to accept
e-mail from a sender who claims to be
"anyone@".
CJENSEN_1
Regular Advisor

Re: Unable to mail from exchange to hpux

/etc/resolv.conf has our domain, and the ip address of our two DNS servers.
nslookup emailstorage.rbe.sk.ca returns the approprate server (the Microsoft exchange server).
thanks for your help...I'll keep digging around...colin