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.