More probably, you mistyped the domain name of the company you were sending to (the part after the @ sign in the address, bolded here as an example: hr@exampledomain.com).
The MX lookup error means that your email provider was unable to find an email server for the address you provided - this means either the company doesn't have an email server (unlikely one would think), the company's email server doesn't have the correct public address so other email servers can find it (also unlikely) or you sent the message to an invalid address (by far the most likely). So check your spelling first.
|