Hi, i sometimes received this error from my exchange. nsv24.dnshostmaster.net gave this error: No Such User Here Tried google but not answer. Can someone assist me? Thanks

It's not Exchange generating that error, it's the e-mail system Exchange is trying to send a message to, and it's saying that there's no such user there.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Hi, the email is a valid email address and i'm sending it outside not internally. this happens only intermittently, after several tries it managed to went through. can you be so kind to enlighten me? Thanks,

You can enable SMTP protocol logging and then look at the logs to see what host is generating that error. It could be that the recipient domain has more than one MX record, one of which points to an invalid server. There are certainly other possibilities.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Definitely looks to be DNS related. If you're able to send an email to the user sometimes and not for others, it might be the case that the Email is being sent from your server to destination email servers with different IP Addresses that resolve to the same DNS name. Ook

Definitely looks to be DNS related. If you're able to send an email to the user sometimes and not for others, it might be the case that the Email is being sent from your server to destination email servers with different IP Addresses that resolve to the same DNS name. Ook

Definitely looks to be DNS related. If you're able to send an email to the user sometimes and not for others, it might be the case that the Email is being sent from your server to destination email servers with different IP Addresses that resolve to the same DNS name. Ook

Definitely looks to be DNS related. If you're able to send an email to the user sometimes and not for others, it might be the case that the Email is being sent from your server to destination email servers with different IP Addresses that resolve to the same DNS name. Ook

Definitely looks to be DNS related. If you're able to send an email to the user sometimes and not for others, it might be the case that the Email is being sent from your server to destination email servers with different IP Addresses that resolve to the same DNS name. Ook

Definitely looks to be DNS related. If you're able to send an email to the user sometimes and not for others, it might be the case that the Email is being sent from your server to destination email servers with different IP Addresses that resolve to the same DNS name. Ook