如何將受信任的發件人列入白名單？

問題

如何將受信任的發件人列入白名單？

答案

在思科郵件安全裝置(ESA)上，將您信任的發件人新增到白名單發件人組，因為該發件人組使用$TRUSTED郵件流策略。WHITELIST發件人組的成員不受速率限制，Cisco IronPort AntiSpam引擎不會掃描來自這些發件人的內容，但仍會掃描Sophos防病毒軟體。

注意：預設配置下，防病毒掃描已啟用，但反垃圾郵件已關閉。

要將發件人列入白名單，請將發件人新增到主機訪問表(HAT)中的WHITELIST發件人組。可以通過GUI或CLI配置HAT。

在GUI上

1. 按一下Mail Policies選項卡。
2. 在Host Access Table部分下，選擇HAT Overview，
3. 在右側，確保當前選擇了您的InboundMail偵聽程式，
4. 在下面的發件人組列中，按一下白名單，
5. 按一下靠近頁面底部的Add Sender按鈕。
6. 在第一個欄位中輸入要列入白名單的IP或主機名。

新增完條目後，按一下Submit按鈕。請記得按一下Commit Changes按鈕以儲存更改。

在CLI上

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
[]>

請記得發出 commit 命令儲存更改。

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