問題：
ESA能否將SMTP流量傳送到除25以外的其他埠號？
埠25是標準SMTP埠郵件交換伺服器，用於偵聽傳入的電子郵件。ESA可以配置為透過備用埠將郵件傳送到特定主機。CLI中的smtproutes命令是配置此命令的最簡單方法：
mail3.example.com> smtproutes
There are no routes configured.
Choose the operation you want to perform:
- NEW - Create a new route.
- IMPORT - Import new routes from a file.
[]> new
Enter the hostname for which you want to set up a permanent route.
Partial hostnames such as ".example.com" are allowed.
Use "ALL" for the default route.
[]> testexchange.example.com
Enter the destination hosts, separated by commas, which you want mail for
testexchange.ironport.com to be delivered.
Enter /dev/null by itself if you wish to discard the mail.
[]> exchange.example.com:1025
Mapping for testexchange.ironport.com to exchange.example.com:1025 created.
There are currently 1 routes configured.
Choose the operation you want to perform:
- NEW - Create a new route.
- DELETE - Remove a route.
- PRINT - Display all routes.
- IMPORT - Import new routes from a file.
- EXPORT - Export all routes to a file.
- CLEAR - Remove all routes.
[]>
> commit
Please enter some comments describing your changes:
[]> testing the new exchange server on an alternate port
Changes committed: Mon Mar 28 14:20:06 2005 PST
mail3.example.com>
在這種情況下，系統配置為透過埠1025將testexchange.example.com的郵件傳送到exchange.example.com。
還可以透過GUI、網路(Network)->SMTP路由(SMTP Route)->增加SMTP路由(Add SMTP Route)以及用所需埠填寫域和目的主機(Destination host)來進行上述更改。完成之後，您必須提交並確認變更。
要使用Appliance GUI將ESA配置為透過備用埠將郵件傳送到特定主機，請選擇Network > IP Interface並修改IP介面的設定。
意見