Error sending an email - Delivery Failure

A sales agent in my office tried to send an email and got this error. I googled the error, and there were no hits! (That's never happened to me before - I'm usually not that original!) Does anyone know what this error means or where I should start digging?

Could not deliver message to the following recipient(s):

Failed Recipient: [email protected]
Reason: Remote host said: xxx x.x.x Your server IP address is in the UCE
layer 1 database, bye

(The x's were more realistic values in the real error, not sure if I'd be revealing anything I shouldn't if I didn't x-them out).

Thanks for any help.

uce - unsolicited commercial e-mail


That's all I know.

I found this article, which might prove useful.

So that means something on their end won't accept it because it's unsolicited? Is there something we can tell them to do to let this in - because this is a customer the sales agent contacted and the email was a follow-up. Oh, if the intended recipient emails the sales agent first, will the sales agent be able to successfully reply?

Thanks.

Quote:

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Originally Posted by abhijit

I found this article, which might prove useful.

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I'll look at it, but in the meantime I cross-posted, sorry...

I can think of a couple of options.

The IP you're using is classified as SPAM. So either their email address needs to move your IP to a safe filter list
OR
You need to get another ip address to send out mails.

Quote:

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Originally Posted by MMock

(The x's were more realistic values in the real error, not sure if I'd be revealing anything I shouldn't if I didn't x-them out).

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Nah they would just be the SMTP response codes, I'm guessing it started with a 5?

Anyway, I would do a blacklist check on your external IP address / DNS address and see if you are on any well known black lists - this is a fairly decent free one: http://www.mxtoolbox.com/blacklists.aspx
If that all comes back clean then I would just try to contact the company you are sending the email to and ask them to add your domain to their white list / safe senders list.