Barracuda Spam Filtering Service Frequently Asked Questions

The Barracuda SPAM & Virus Firewall is an integrated hardware and software solution that eliminates spam and viruses from your email. The Barracuda SPAM filtering service was implemented July 12, 2010 on the College Exchange server managed by Ag IT.

Messages from the Barracuda Spam & Virus Firewall

Greeting Message:

The first time Barracuda quarantines an email intended for you, the system sends you a greeting message with a subject line of “User Quarantine Account Information." The greeting message contains a greeting, username, and a link to access your Quarantine Inbox. You don't need to save this message past its first use.

Subject: User Quarantine Account Information

Welcome to the Barracuda1.  This message contains the information you will need to access your Spam Quarantine and Preferences.

Your account has been set to the following username:
   Username: [Your UserID]

Access your Spam Quarantine directly using the following link:[your[auto-generated-string]

Quarantine Summary Report:

If you have quarantined email waiting to process, Barracuda sends you a quarantine summary report. You have the choice to receive these Daily, Weekly or Never. Daily is recommended. From within the email, you can review your quarantined messages, add messages to your whitelist, delete messages, or have messages delivered to your Inbox.

Spam Quarantine Summary


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  • To quickly remove all emails from quarantine, click the DELETE ALL DISPLAYED EMAILS link.
  • To review an individual message to determine if it Spam, click the View link.
  • To have an individual message delivered to your Inbox, click the Deliver link.
  • To have an individual message delivered to your Inbox and the sender whitelisted (so further email from this sender will be sent to your mailbox), click the Whitelist link.
  • To have an individual message removed (deleted) from your quarantine, click the Delete link.

Note: To go to the Quarantine Inbox directly and manage the messages from there, you can click the View your entire Quarantine Inbox or manage your preferences link at the bottom of the message.

[SUSPECTED SPAM] Email Subject Tag:

Barracuda will add the prefix [Suspected Spam] to messages that it determines may be Spam.

The Barracuda Networks device tests each message that is delivered to the College's Exchange server from the 'outside' world. This includes other Penn State Email servers and the Internet. Messages are given a score from 0 to 10. Here is a set of example levels. These levels will be adjusted over time as the system 'learns' what Spam messages are delivered to our Exchange server.

0.0 - 3.49 --> Delivered to Inbox.
3.5 - 4.49 --> Delivered to Inbox. Subject line tagged with [Suspected Spam].
4.5 - 5.99 --> Delivered to Barracuda Quarantine Inbox.
6.0 - 10.0 --> Blocked from delivery.

Note: As of 3/1/2017, if Penn State’s Spam filter determines the message is Spam, the Barracuda Spam Filtering Service will mark the email with the [Suspected Spam] header as well.

Takeaway Point: You should understand that when messages arrive in your Inbox with the prefix [Suspected Spam] that the Barracuda Networks device has added it to the message. 

Access the Barracuda Quarantine Inbox

You may access the Quarantine Inbox in two ways.

First (and preferred), click the link in the Quarantine Summary Report. Be sure to check your Quarantine soon after getting the email.

Second, you can login to the Barracuda Quarantine Inbox.

  1. Go to
  2. In the Username box, enter your AG UserID. (Example: vcv1 ... do NOT precede this with AG\)
  3. In the Password box, enter your AG password.
  4. Click Login.

Managing Your Quarantine Inbox

After logging into the quarantine interface, click the QUARANTINE INBOX tab to view a list of your quarantined messages.

Review a Message

To open a message, click on the Time Received, From, or Subject. The message will open in a Quarantine Message Detail window. Click View Source to see the Internet Headers of the message. Click the Help button to learn more about the choices at this screen. Click the Close box (X) to close the message.

Selecting Multiple Messages

To select multiple messages, place a check in the box to the left of the individual message. To quickly select all the messages within quarantine, place a check in the topmost box (to the left of Time Received).

Note: If you want to whitelist a message make sure to do it before delivering the message to your Inbox. Once the Barracuda Spam Firewall delivers a message, it is removed from the quarantine list.

Deliver (Send to Inbox)

To deliver an individual message to your Inbox, under Actions, click the Deliver link.
To deliver multiple messages to your Inbox, select (check) multiple message, click the Deliver button.

Whitelist (Send to Inbox and Sender Added to Whitelist)

To whitelist an individual message and send to your Inbox, under Actions, click the Whitelist link.
To whitelist multiple messages and send to your Inbox, select (check) multiple message, click the Whitelist button.

Note: When a message is added to your whitelist all future emails from this sender are not quarantined unless the message contains a virus or banned file type. Barracuda adds the sending email address exactly as it appears in the message to your personal whitelist. Some commercial mailings may come from one of several servers such as "" A subsequent message may come from "" See the section on managing your whitelists and blocklists for tips on specifying whitelists with greater effectiveness.

Delete (Remove from Quarantine)

To delete an individual message, under Actions, click the Delete link.
To delete multiple messages, select (check) multiple message, click the Delete button.

Note: You cannot recover messages you have deleted. The main reason to delete messages is to help you keep track of which quarantine messages you have reviewed.

Changing Your Preferences

After logging into the quarantine interface, select the PREFERENCES tab to manage your whitelist/blocklist as well as modify your quarantine and spam settings.

What is the Whitelist and Blocklist

A list of email addresses or domains from which you always wish to receive messages. The only time the Barracuda Spam Firewall filters a message from someone on your whitelist is when the message contains a virus or a disallowed attachment file extension.

A list of senders from whom you never want to receive messages. The Barracuda Spam Firewall immediately discards messages from senders on your blocklist. These messages are not tagged or quarantined and cannot be recovered. The sender does not receive a notice that the message was deleted, and neither do you.

Adding Email Addresses and Domains to Your Whitelist and Blocklist

  1. Under PREFERENCES, click Whitelist/Blocklist.
  2. To add a single entry, type an email address into the appropriate field and click the corresponding Add button.
  3. Once entered, to delete a Whitelist or a Blocklist entry, click the trash can next to the address.

Note: You can use the following guidelines when adding addresses to your Whitelist and Blocklist.

  • If you enter a full email address, such as, just that user is specified. If you enter just a domain, such as, all users in that domain are specified.
  • If you enter a domain such as, all sub domains are also included, such as and
  • Mass mailings often come from domains that do not resemble the company's web site name.  For example, you may want to receive mailings from, but you will find that this site sends out its mailing from the domain You need to look at the From: address of an actual mailing that you are trying to Whitelist or Blocklist to determine what to enter.
  • The following How To's will help you add addresses to the Whitelist or Blacklist.
    How To Add Your Outlook Contacts to Barracuda Whitelist
    How To Add Multiple (Bulk Edit) Addresses to Barracuda Whitelist or Blacklist

Quarantine Settings

The Barracuda Spam Firewall only sends quarantine summary reports when one or more of your emails have been quarantined. If you select Never, you can still view your quarantined messages from the quarantine interface, but you will not receive quarantine summary reports.

  1. Under PREFERENCES, click Quarantine Settings.
  2. Next to Notification Interval, you have the choice to receive the quarantine summary report either Daily, Weekly or Never. Recommended - Daily.
  3. If you prefer to have the quarantine summary report sent to an account other than your College Exchange account, enter an email address in Notification Address. Recommended - Leave this field blank.
  4. Click Save Changes.