Contact 4Help by using the Help Request Form (http://4help.vt.edu/) or by calling (540) 231-HELP (4357).

• Explain that you are receiving an error message stating that the domain is blacklisted when you send or receive Virginia Tech Mail messages (@vt.edu).
• The domain or IP address either from which or through which you send mail may be blocked from sending or receiving messages to Virginia Tech Mail addresses.

For Advanced Users:

The following is an example of the full error message:

There are two solutions you can try:

• If you are using your Virginia Tech Mail account (@vt.edu), you may also be using a different Internet Service Provider (ISP), such as Adelphia, NTC, or Verizon rather than Virginia Tech. If so, you must change your e-mail client configuration. To find out which Outgoing Mail Server you must use, refer to this list of Local Internet Service Providers (http://www.computing.vt.edu/email_and_calendaring/vt_mail/isp_smtp.html) for ISPs in the Blacksburg, Virginia area.
• If your domain is not being blocked, it is possible that your ISP is. Using a reverse DNS pointer or using a mail relay will resolve the problem:
  • If you are a general user, ask your mail or site administrator to set up the reverse DNS pointer or mail relay.
  • If you are unsure of who your administrator is, refer to Local Internet Service Providers (http://www.computing.vt.edu/email_and_calendaring/vt_mail/isp_smtp.html).
  • If you are a mail or site administrator, refer to Setting Up a Reverse DNS Pointer or Using a Mail Relay (Mail or Site Administrators) (http://answers.vt.edu/kb/entry/2821/).