| This document gives a general overview of how most popular
anti-virus programs (such as Norton, McAfee, Sophos, etc.) function, how
they interact with your mail program, and how they should be maintained.
Only general concepts are discussed and you should consult your anti-virus
program's documentation for specific instructions.
What you get when you buy an anti-virus program
What you need to do to maintain your anti-virus
program
What an anti-virus proxy server does
Adjusting settings when anti-virus
mail proxy are used
Problems an anti-virus mail proxy servers can cause
and how to correct them
What you get when you buy an anti-virus
program.
When you purchase anti-virus software (or when it comes with a new
computer), you receive two things: the program itself and a subscription
to its update service. Your anti-virus program uses a set of virus definitions
to detect and eliminate viruses. You can think of the virus definitions
as a "mug book" for viruses and other miscreants. You are only protected
against viruses your anti-virus program knows about, so the virus
definitions need to be updated regularly, which is where the update service
come in. You should update your virus definitions once per week.
Eventually, your anti-virus program will ask you to spend more money (typically
twenty to thirty dollars) to re-subscribe to its update service for a few
more years.
What you need to do to maintain your
anti-virus program.
-
You should update your virus definitions once per week. You can start updates
manually, but most anti-virus programs can be set to automatically update
their virus definitions at a given time and day. Take the time to consult
your antivirus program's documentation and become familiar with this aspect
of its operation.
-
If your anti-virus program warns you that your update subscription is about
to run out, be sure to renew your subscription as per its instructions.
If your subscription lapses and your updates cease, you will not be protected
against new viral threats. NOTE: Occasionally you may be asked to
upgrade your anti-virus program rather than just updating
the virus definitions (the mug book). This can be necessary
if the version of the program you are using is a few years old, but this
can also just be marketing, so read the notification carefully. If
you must upgrade your program in order to stay protected, then do it.
If you are simply being offered more or different feature (like disk management
software or firewall software) consider your options first.
What an anti-virus proxy server
does.
Many anti-virus programs now include a "proxy mail server" which inserts
itself between your email program and OlympusNet's mail server and
pretends to be a mail server. Instead of your mail program talking directly
to OlympusNet's mail server, it talks to your anti-virus program and the
anti-virus program acts as a middle man. Below is an example for
fictional customer "Jane Doe" who is using Outlook Express as a mail Program
and Norton anti-virus.
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Jane clicks the "Send/Receive" button in Outlook Express
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Outlook asks Norton for Jane's mail, passing along her username, password
and mail server information
-
Norton takes this information from Outlook Express and contacts OlympusNet's
mail server pretending to be a mail program (OlympusNet's mail server doesn't
know or care if this is Norton or Outlook Express as long as the username
and password are correct).
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OlympusNet's mail server gives the mail to Norton.
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Norton digests the mail, looking for viruses.
-
Norton gives the mail to Outlook Express, fulfilling its role as a proxy
mail server.
| Anti-virus mail proxy servers
make two fundamental changes to mail setting. The first change is
to replace the the content of the "Incoming mail server" line with a reference
to itself. In the example on the right, Norton has replaced the usual setting
"mail.olympus.net" with "pop3.norton.antivirus". Other anti-virus
programs may insert "localhost" or "127.0.0.1" in the is spot.
The second change made by the anti-virus proxy is to append the name
of the mail server that it replaced earlier to the username (called "account
name" in some programs) along with a "/" separator. Compare this
to the typical
settings for Outlook Express. |
 |
Adjusting settings when anti-virus
mail proxy are used
If you have an anti-virus proxy server protecting your mail and you
need to change your username or your incoming mail server settings, you
can do so by carefully editing the username (sometimes called "account
name") line of your mail program. Continuing with the above
example, imagine that Jane needs to change her username to "jdoe".
To do so, she would change the Account name line in her Outlook Express
settings to read "jdoe/mail.olympus.net".
!!! IMPORTANT NOTE FOR OLYMPUSNET MAIL SERVER
CHANGE !!!
OlympusNet will be upgrading mail service ( new date pending). After
this change, it will be necessary for the incoming mail server to read "mail.olympus.net" in order
for you to receive your email. If you find that your incoming mail server setting currently lists
either "pop3.norton.antivirus", "localhost" or "127.0.0.1" do not change the incoming mail server
itself. Instead, edit the username line (or "Account Name" line) in your mail program to read
username/mail.olympus.net substituting your username before the "/" character. For a more complete
discussion, read the above section, What an
anti-virus proxy server does.
Return to Mail Move
Problems an anti-virus mail proxy servers
can cause and how to correct them
As can be seen in the above example, there are many more opportunities
for things to wrong when using an anti-virus proxy server than when a mail
program gets mail from a server directly. However the benefits usually
outweigh the potential problems. The most common problem is when (for whatever
reason) the anti-virus proxy server fails to respond to the mail program's
request. Depending on the anti-virus and mail programs being used,
this could cause error messages such as "the server 127.0.0.1 could not
be found" or "the server pop3.norton.antivirus is not responding". If this
occurs, first verify that you are able to connect to the Internet and get
web pages. Next try restarting your computer, which can solve an amazing
number of problems.
If a restart doesn't help, contact OlympusNet support
for assistance. |