Cisco Cisco Content Security Management Appliance M1070 Guida Utente

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AsyncOS 8.2 for Cisco Content Security Management User Guide
 
Chapter 7      Managing the Spam Quarantine
Accessing Safelists and Blocklists
To access safelists and blocklists, end users whose accounts are authenticated using LDAP or mailbox 
authentication (IMAP or POP) must log in to their accounts on the Spam Quarantine. The end users must 
log in to their accounts even if they are accustomed to accessing messages through a spam notification 
(which typically does not require LDAP or mailbox authentication). If the end user authentication is set 
to None, end users do not need to log in to their accounts to access safelist/blocklist settings.
Adding Entries to Safelists and Blocklists
Entries (including those using IPv6 addresses) can be added to safelists and blocklists using the 
following formats:
user@domain.com
user@[203.0.113.15] 
user@[ipv6:2001:db8:80:1::5] 
server.domain.com
domain.com 
[203.0.113.15]
[ipv6:2001:db8:80:1::5] 
End users cannot add a sender or domain to both their safelist and their blocklist at the same time. 
However, if they add a domain to a safelist and a user in that domain to the blocklist (or vice versa), the 
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 appliance delivers all mail from example.com without 
scanning for spam, but it treats mail from george@example.com as spam.
End users cannot allow or block a range of subdomains using the following syntax: .domain.com. 
However, an end user can explicitly block a specific domain using the following syntax: 
server.domain.com.
Working with Safelists
End users can add senders to safelists in two ways. From the Spam Quarantine, they can manually add 
a sender to the safelist by clicking the Options menu in the upper-right corner of the GUI and then 
selecting Safelist.
Add an email address or domain to the list, and click Add to List.
End users can also add senders to the safelist if the message has been sent to the Spam Quarantine. If the 
message from a particular sender is held in the Spam Quarantine, the end user can select the check box 
next to the message, and choose “Release and Add to Safelist” from the drop-down menu. 
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. 
Note
End users can also use the spam notification message to release messages. Click the Not Spam link to 
release a particular message. End users also have the option to add senders to their safelists.