Selecting email block notification by domain using the CLI

You can configure email block notification by domain to manage multiple domains efficiently and help support multi-tenancy. You can configure block notification per domain under email-analysis domain configuration.

Two CLI commands are available for configuring email block notification by domain. Block notification by domain is supported only in block mode and tap mode.

email-analysis domain <domain> block-notice enable
no email-analysis domain <domain> block-notice enable

When enabled, recipients in the specified domains receive email notifications. Block notification for global domains must be enabled before individual domain notifications can function. For details about how to enable block notification for global domains, see. Configuring the analysis mode using the Web UI.

When global block notification is disabled, enabling block notice for a domain in the CLI generates a prompt to enable global block notification first. Individual notifications can be specified when global block notification is disabled, but will not function unless global block notification is enabled.

Prerequisites

An established connection between the Email Security - Server appliance and the Internet.
You are logged in to the Email Security - Server appliance CLI as an Admin or Operator.

To select email block notifications by domain:

Go to CLI configuration mode:

hostname > enable
hostname # configure terminal

Select (enable) email block notification for a domain:

hostname (config) # email-analysis domain <domain.com> block-notice enable

Save your changes:
```
hostname (config) # write memory
```

Verify the status of email block notification by domain:

hostname (config) # show email-analysis
Email-Analysis Policy:
. . . .
 Enable Notice (block mode): yes
. . . .

The Enable Notice (block mode): line displays yes when global email block notification by domain is enabled.

The show email-analysis CLI output also shows the enabled or disabled status for each domain:

. . . .
  domain: domain-name_01.com
	  next hop mta: 172.xx.xxx.xx
	  MX Enable: false
	  TLS mode: none
	  Block Notice Enable: true
  domain: domain-name_02.com
	  next hop mta: 172.xx.xxx.xx
	  MX Enable: false
	  TLS mode: none	
	  Block Notice Enable: false
. . . .

To disable email block notification for a domain:

Go to CLI configuration mode:

hostname > enable
hostname # configure terminal

Disable email block notification for a domain:

hostname (config) # no email-analysis domain <domain.com> block-notice enable

Save your changes:
```
hostname (config) # write memory
```
Verify the status of email block notification by domain:
```
hostname (config) # show email-analysis
```
```
Email-Analysis Policy:
. . . .
 Enable Notice (block mode):   no
. . . .
```
The Enable Notice (block mode): line displays no when global email block notification by domain is disabled.
It is possible to enable block notification for individual domains even if global block notification is disabled. In this case, the show email-analysis CLI output shows the global disabled status, in addition to the enabled or disabled status for each domain:
```
. . . .
  domain: domain-name_01.com
	  next hop mta: 172.xx.xxx.xx
	  MX Enable: false
	  TLS mode: none
	  Block Notice Enable: true (Global Block Notice is Disabled)
. . . .
```