I am sending automated mail to different mail to different domain address by using "CDO.Message"

But from one of client i have getting the bounced back mail and the following message:

<

Hi. This is the qmail-send program at mail-gw1.domainName.com.
I'm afraid I wasn't able to deliver your message to the following addresses. This is a permanent error; I've given up. Sorry it didn't work out.

<test@domainName.com>:
Sorry, I wasn't able to establish an SMTP connection. (#4.4.1) I'm not going to try again; this message has been in the queue too long.

>

Thanks.

Sounds like the remote mail server is rejecting the SMTP communcation.

Try telnetting to the mail server and see if will let you send an email that way.

telnet mail-gw1.domainname.com 25

Start with EHLO or HELLO and go from there.