How to Set up Email Safelists and Blocklists

 

End User Tasks for Configuring Safelists and Blocklists

End users can create safelists to ensure that messages from certain senders are never treated as spam, and they can use blocklists to ensure that messages from certain senders are always treated as spam. For example, an end user may receive email from a mailing list that no longer interests him. A user may decide to add this sender to his blocklist to prevent emails from the mailing list from getting sent to his inbox. On the other hand, end users may find that emails from specific senders get sent to their IronPort Spam Quarantine when they don’t want them to be treated as spam. To ensure mail from senders are not quarantined, they may want to add the senders to their safelists.

Note

:  Safelist/Blocklist settings are contingent on other settings configured by the system administrator.

To work with safelists and blocklists, end users must complete the following tasks:

 

•

  • Access safelists and blocklists. End users may need to log into their IronPort Spam Quarantine accounts. For more information, see Accessing Safelists and Blocklists.

•

  • Add safelist entries. Users add safelist entries from the Options menu or the list of quarantined messages in IronPort Spam Quarantine. For more information, see Adding Entries to Safelists.

 

•

  • Add blocklist entries. Users add blocklist entries from the Options menu of the IronPort Spam Quarantine. For more information, see Adding Entries to Blocklists.

 

Accessing Safelists and Blocklists

To access safelists and blocklists, end must log into their accounts on the IronPort Spam Quarantine. The end user must log into their account even if they are accustomed to accessing their messages via a spam notification (which usually doesn’t require authentication).

You can access your IronPort Spam Quarantine at the following locations:

 

https://quarantine.samuelmerritt.edu:83

 

https://quarantine01.samuelmerritt.edu:83

 

Log on as you would to canvas or any other integrated web system in the SMU environment using the same username and password combination.

 

Note: SMU maintains two Cisco IronPort ESA appliances for redundancy and load balancing purposes.  Though the Network Services Team will synchronize the end user Safelists and Blocklists between the two periodically, the user may want to safe or block list a sender at BOTH locations listed above.

 

Syntax for Safelists and Blocklist Entries

Entries can be added to safelists and blocklists using the following formats:

•

user@domain.com

•

server.domain.com

 

•

domain.com

End users cannot add a sender or domain to both safe and block lists at the same time. However, if the end user adds a domain to a safelist, and the email address for a user of that domain to the blocklist (or vice versa), the Cisco IronPort appliance applies both rules. For example, if the end user adds example.com to the safelist, and adds george@example.com to the blocklist, the Cisco IronPort appliance delivers all mail from example.com without scanning for spam, but will treat mail from george@example.com as spam.

End users cannot allow or block a range of sub-domains using the following syntax: .domain.com. However, an end user can explicitly block a specific domain using the following syntax: server.domain.com.

 

Adding Entries to Safelists

End users can add senders to safelists in two ways:

Method 1

 

Step 1

  From the IronPort Spam Quarantine, select the Options drop-down menu.

 

Figure 4-26   Safelist Options in the End-User Quarantine

 

 

 

 

Step 2

 Choose Safelist.

Step 3

 From the Safelist dialog box, enter the email address or domain. You can enter multiple domains and email addresses, separated by commas.

Step 4 Click Add to List.

 

 Figure 4-27  Safelist in End-User Quarantine

 

           

 

Safelist in End-User Quarantine

Method 2

 

End users can also add senders to the safelist if the message has been sent to the end user quarantine.

 

Step 1

  From the End-User Quarantine, select the checkbox next to message.

 

 

Step 2

  Choose “Release and Add to Safelist” from the drop-down menu.

 

 

 

Figure 4-28   Safelist in End-User Quarantine

 

                 

 

The envelope sender and the from header for the specified mail are both added to the safelist, and the released messages proceed directly to the destination queue, skipping any further work queue processing in the email pipeline.

 

Adding Entries to Blocklists

 

End users can use blocklists to ensure that they never receive mail from specified senders.

 

                               

Step 1  From the End-User Quarantine, select the Options drop-down menu.

 

 

 

 

Step 2  Enter the domain or email address you want to blocklist. You can enter multiple domains and email addresses, separated by commas.

Step 3  Click Add to List.

 

 

 

 

 

 

When the Cisco IronPort appliance receives mail from the specified email address or domain that matches an entry in the blocklist, it treats the mail as spam. The mail may be rejected or it may be quarantined, depending on the safelist/blocklist action settings.

Note

:  Unlike safelist entries, you can only add blocklist entries from the Options menu in the End-User Quarantine.


 

 

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