Hoe maak je een Vertrouwde Verzender Whitelist?

Vraag

Hoe maak je een Vertrouwde Verzender Whitelist?

Antwoord

Voeg in de Cisco Email Security Applicatie (ESA) afzenders die u vertrouwt toe aan de WHITELIST-afzendergroep omdat deze afzendergroep het $TRUSTED mail flow-beleid gebruikt. Leden van de WHITELIST-afzendergroep zijn niet onderhevig aan snelheidsbeperking en de inhoud van die afzenders wordt niet gescand door Cisco IronPort AntiSpam-engine, maar wordt nog steeds gescand door de Sophos Anti-Virus-software.

Opmerking: standaard is anti-virusscanning ingeschakeld, maar anti-spam is uitgeschakeld.

Als u een afzender wilt whitelist, voegt u de afzender toe aan de afzendergroep WHITELIST in de Host Access Table (HAT). U kunt de HAT configureren via de GUI of de CLI.

Via de GUI

1. Klik op het tabblad Postbeleid.
2. Selecteer in het gedeelte Host Access Table de optie HAT Overzicht,
3. Aan de rechterkant, zorg ervoor dat uw InboundMail luisteraar is geselecteerd,
4. Klik in de onderstaande kolom Sender Group op WHITELIST,
5. Klik op de knop Afzender toevoegen in de onderste helft van de pagina.
6. Voer in het eerste veld de IP of Hostname in die u wilt whitelisteren.

Wanneer u klaar bent met het toevoegen van items, klikt u op de knop Verzenden. Vergeet niet om op de knop Veranderingen vastleggen te klikken om uw wijzigingen op te slaan.

Van de CLI

example.com> listenerconfig
Currently configured listeners:
1. InboundMail (on PublicNet, 172.19.1.80) SMTP TCP Port 25 Public
2. OutboundMail (on PrivateNet, 172.19.2.80) SMTP TCP Port 25 Private
Choose the operation you want to perform:
- NEW - Create a new listener.
- EDIT - Modify a listener.
- DELETE - Remove a listener.
- SETUP - Change global settings.
[]> edit
Enter the name or number of the listener you wish to edit.
[]> 1
Name: InboundMail
Type: Public
Interface: PublicNet (172.19.1.80/24) TCP Port 25
Protocol: SMTP
Default Domain:
Max Concurrency: 1000 (TCP Queue: 50)
Domain Map: Disabled
TLS: No
SMTP Authentication: Disabled
Bounce Profile: Default
Use SenderBase For Reputation Filters and IP Profiling: Yes
Footer: None
LDAP: Off

Choose the operation you want to perform:
- NAME - Change the name of the listener.
- INTERFACE - Change the interface.
- LIMITS - Change the injection limits.
- SETUP - Configure general options.
- HOSTACCESS - Modify the Host Access Table.
- RCPTACCESS - Modify the Recipient Access Table.
- BOUNCECONFIG - Choose the bounce profile to use for messages injected on this
listener.
- MASQUERADE - Configure the Domain Masquerading Table.
- DOMAINMAP - Configure domain mappings.
[]> hostaccess
Default Policy Parameters
=========================
Allow TLS Connections: No
Allow SMTP Authentication: No
Require TLS To Offer SMTP authentication: No
Maximum Concurrency Per IP: 1,000
Maximum Message Size: 100M
Maximum Messages Per Connection: 1,000
Maximum Recipients Per Message: 1,000
Maximum Recipients Per Hour: Disabled
Use SenderBase For Flow Control: Yes
Spam Detection Enabled: Yes
Virus Detection Enabled: Yes
There are currently 4 policies defined.
There are currently 5 sender groups.
Choose the operation you want to perform:
- NEW - Create a new entry.
- EDIT - Modify an entry.
- DELETE - Remove an entry.
- MOVE - Move an entry.
- DEFAULT - Set the defaults.
- PRINT - Display the table.
- IMPORT - Import a table from a file.
- EXPORT - Export the table to a file.
- CLEAR - Remove all entries.
[]> edit
1. Edit Sender Group
2. Edit Policy
[1]> 1
Currently configured HAT sender groups:
1. WHITELIST (My trusted senders have no Brightmail or rate limiting)
2. BLACKLIST (Spammers are rejected)
3. SUSPECTLIST (Suspicious senders are throttled)
4. UNKNOWNLIST (Reviewed but undecided, continue normal acceptance)
5. (no name, first host = ALL) (Everyone else)
Enter the sender group number or name you wish to edit.
[]> 1

Choose the operation you want to perform:
- NEW - Add a new host.
- DELETE - Remove a host.
- MOVE - Reorder the hosts.
- POLICY - Change the policy settings and options.
- PRINT - Display the current definition.
- RENAME - Rename this sender group.
[]> new
Enter the hosts to add. CIDR addresses such as 10.1.1.0/24 are allowed. IP
address ranges such as 10.1.1.10-20 are allowed. IP subnets such as 10.2.3. are
allowed. Hostnames such as crm.example.com are allowed. Partial hostnames such
as .example.com are allowed.
Ranges of SenderBase Reputation scores such as SBRS[7.5:10.0] are allowed.
SenderBase Network Owner IDs such as SBO:12345 are allowed.
Remote blacklist queries such as dnslist[query.blacklist.example] are allowed.
Separate multiple hosts with commas
[]>

 commit Vergeet niet de opdracht uit te geven om uw wijzigingen op te slaan.

Gerelateerde informatie

• Cisco e-mail security applicatie – eindgebruikershandleiding
• Technische ondersteuning en documentatie – Cisco Systems