If you are having or have recently had trouble with download a message(s) and you have email protection enabled in your Norton Anti-Virus program please read the following:

We would recommend you disable email protection as described below to download email you are having trouble downloading, then you can re-enable email protection. You will have to restart your computer after you disable or re-enable email protection for the settings to change.

If you continue to have trouble and need further assistance feel free to email or call NCIA Technical Support (support@ncia.net) or (1-800-SYS-NCIA).

Norton AntiVirus Email Protection:

Norton AntiVirus 2000/2001 includes an email protection feature, which scans email messages and attachments for viruses as they are being retrieved. It provides an additional layer of protection to Auto-Protect alone, though your system can be secure without it.

Without email protection enabled, your email program connects directly to the mail server and downloads the mail. Email protection creates a step in between; it sets up a proxy server on your computer. Your email program connects to the proxy server, rather than the mail server; the proxy server then connects to the mail server, downloads the mail, and scans it for viruses. Then, and only then, does your email program receive the email.

Because, in this process, your email program never connects directly to your Internet Service Provider's (ISP) mail server, it must be configured to connect to the proxy server instead of the mail server. The address it uses is as follows:

NAV 2000: 127.0.0.1
NAV 2001: pop3.norton.antivirus
This IP address is known as the loopback address; it simply indicates "this computer."

Norton AntiVirus also changes your user name. For example, if your user name is "gsmith" and your mail server is "mail.worldservice.com," the text in the program's user name settings box would be changed from "gsmith" to "gsmith/mail.worldservice.com." When the NAV email proxy server receives a logon, it divides this back into the user name and the server name, then connects to the specified mail server.

These are the only changes that Norton AntiVirus makes to your email program.

What if you cannot receive email with these settings? On most computers and with most ISPs, email protection works without any problem. There are, however, some cases in which the proxy server cannot connect to the mail server. Your email program connects to the proxy server and asks for mail, so the proxy tries to connect to the mail server--and fails. Your email program eventually reports an error, because it does not receive a response. For more information on what can prevent Norton AntiVirus from connecting to your ISP's mail server, please see the document Cannot use NAV Email Protection with Internet Service Provider's email system.
The other possibility is that, for some reason, the proxy server, POProxy.exe, is not starting. This usually stems from a timing conflict when your computer starts up and POProxy tries to load. For more information, please see the document How to resolve POProxy.exe timing conflicts.

How can you change the settings back?
The easiest way to change the settings back is to disable email protection. Disabling email protection looks at the user name in your email program, looking for a / character. It then keeps the settings before the / for the user name and changes the server name back to whatever was after the / (after deleting 127.0.0.1 or pop3.norton.antivirus from the server name). For example, if email protection changed the user name to "gsmith/mail.worldservice.com", and you disabled email protection, it would change the user name back to "gsmith" and the server name back to "mail.worldservice.com".

You can also manually change the settings back; please consult your ISP or your email program's Help menu for instructions on how to do this.

NOTE: If you do not disable email protection, the settings may be changed back after certain actions, such as running LiveUpdate. It is recommended that you disable email protection if you are going to reconfigure your program.

To disable NAV email protection:
1. Start Norton AntiVirus and click Options.
2. Click Email Protection in the Options list.
3. Depending on your version:
NAV 2000 users, uncheck "Enable email protection (recommended)," and then click OK.

NAV 2001 users, uncheck the boxes that correspond to the protected email clients.

Norton AntiVirus will restore the settings, POProxy will no longer load, and email protection will no longer be enabled on your computer.

If you disable email protection, is your computer still safe from email viruses? Disabling email protection does not leave you vulnerable to viruses and malicious software in email. It is a separate layer of protection in addition to Auto-Protect. Auto-Protect scans any incoming files, including email, as they are saved to your hard drive. As long as you keep your virus definitions up to date with LiveUpdate, and keep Auto-Protect enabled and set to scan files as they are created or downloaded, your system is fully protected.