# cPanel API 2 Functions - Email::setdefaultaddress

Warning:

The cPanel API 2 system is deprecated. We **strongly** recommend that you use [UAPI](/cpanel/introduction) instead of cPanel API 2.

## Description

This function configures the cPanel account's default address's rules for un-routable mail. The cPanel account's default (catchall) address handles un-routable mail that the account's domains receive.

Warning:

We **strongly** recommend that you use the following [UAPI](/cpanel/introduction/) function instead of this function:

- ` Email::set_default_address ` — This function configures a default (catchall) email address.


div
Important:
br
When you disable the [*Receive Mail* role](https://docs.cpanel.net/knowledge-base/general-systems-administration/how-to-use-server-profiles/#roles), the system **disables** this function.

br
## Examples

WHM API (JSON)


```undefined syntaxhighlighter-pre
https://hostname.example.com:2087/cpsess##########/json-api/cpanel?cpanel_jsonapi_user=user&cpanel_jsonapi_apiversion=2&cpanel_jsonapi_module=Email&cpanel_jsonapi_func=setdefaultaddress&domain="example.com"&fwdopt="fwd"&fwdemail="catchall@example.com"
```

div
Note:
br
For more information, read our [Calls from the WHM API](/whm/use-whm-api-to-call-cpanel-api-and-uapi) documentation.

br
LiveAPI PHP Class


```undefined syntaxhighlighter-pre
$cpanel = new CPANEL(); // Connect to cPanel - only do this once.

// Forward example.com's unroutable mail to catchall@example.com
$default_address_rules = $cpanel->api2(
    'Email', 'setdefaultaddress',
    array(
        'domain'          => 'example.com',
        'fwdopt'          => 'fwd',
        'fwdemail'        => 'catchall@example.com',
    )
);


// Bounce example.com's unroutable mail with a failure message.
$default_address_rules = $cpanel->api2(
    'Email', 'setdefaultaddress',
    array(
        'domain'          => 'example.com',
        'fwdopt'          => 'fail',
        'failmsgs'        => 'Nobody's home.',
    )
);


// Delete example.com's unroutable mail.
$default_address_rules = $cpanel->api2(
    'Email', 'setdefaultaddress',
    array(
        'domain'          => 'example.com',
        'fwdopt'          => 'blackhole',
    )
);

// Pipe example.com's unroutable mail to the mailscript.pl script.
$default_address_rules = $cpanel->api2(
    'Email', 'setdefaultaddress',
    array(
        'domain'          => 'example.com',
        'fwdopt'          => 'pipe',
        'fwdemail'        => 'mailscript.pl',
    )
);
```

div
Note:
br
For more information, read our [Guide to the LiveAPI System](/guides/guide-to-the-liveapi-system/#guide-to-the-liveapi-system).

br
LiveAPI Perl Module


```undefined syntaxhighlighter-pre
my $cpliveapi = Cpanel::LiveAPI->new(); # Connect to cPanel - only do this once.

# Forward example.com's unroutable mail to catchall@example.com
my $default_address_rules = $cpliveapi->api2(
    'Email', 'setdefaultaddress',
    {
        'domain'          => 'example.com',
        'fwdopt'          => 'fwd',
        'fwdemail'        => 'catchall@example.com',
    }
);


# Bounce example.com's unroutable mail with a failure message.
my $default_address_rules = $cpliveapi->api2(
    'Email', 'setdefaultaddress',
    {
        'domain'          => 'example.com',
        'fwdopt'          => 'fail',
        'failmsgs'        => 'Nobody's home.',
    }
);



# Delete example.com's unroutable mail.
my $default_address_rules = $cpliveapi->api2(
    'Email', 'setdefaultaddress',
    {
        'domain'          => 'example.com',
        'fwdopt'          => 'blackhole',
    }
);



# Pipe example.com's unroutable mail to the mailscript.pl script.
my $default_address_rules = $cpliveapi->api2(
    'Email', 'setdefaultaddress',
    {
        'domain'          => 'example.com',
        'fwdopt'          => 'pipe',
        'fwdemail'        => 'mailscript.pl',
    }
);
```

div
Note:
br
For more information, read our [Guide to the LiveAPI System](/guides/guide-to-the-liveapi-system/#guide-to-the-liveapi-system).

br
cPanel Tag System (deprecated)

div
Warnings:
br
- cPanel tags are **deprecated**. We **strongly** recommend that you **only** use the [LiveAPI](/guides/guide-to-the-liveapi-system) system to call the cPanel APIs. Examples are **only** present in order to help developers move from the old cPanel tag system to our [LiveAPI](/guides/guide-to-the-liveapi-system).
- cPanel API 2 calls that use cPanel tags vary in code syntax and in their output.
- For more information, read our [Deprecated cPanel Tag Usage](/cpanel-api-2/cpanel-api-2-deprecate-cpanel-tag-usage/) documentation.


br
Command Line


```undefined syntaxhighlighter-pre
cpapi2 --user=username Email setdefaultaddress domain=example.com fwdopt=pipe fwdemail=mailscript.pl
```

div
Notes:
br
- You **must** URI-encode values.
- `username` represents your account-level username.
- You **must** run the `--user=username` command.
- For more information and additional output options, read our [Guide to cPanel API 2](/cpanel-api-2/) documentation or run the `cpapi2 --help` command.
- If you run CloudLinux™, you **must** use the full path of the `cpapi2` command:

```undefined syntaxhighlighter-pre
/usr/local/cpanel/bin/cpapi2
```


br
Output (JSON)


```undefined syntaxhighlighter-pre
{
  "cpanelresult": {
    "apiversion": 2,
    "func": "setdefaultaddress",
    "data": [
      {
        "domain": "example.com",
        "dest": "catchall@example.com"
      }
    ],
    "event": {
      "result": 1
    },
    "module": "Email"
  }
}
```

div
Note:
br
Use cPanel's *[API Shell](https://docs.cpanel.net/cpanel/advanced/api-shell-for-cpanel)* interface (*cPanel >> Home >> Advanced >> API Shell*) to directly test cPanel API calls.

br
## Parameters

div
Note:
br
Make certain that you **only** pass necessary parameters to this function. The function adds all parameters to the default address's rules regardless of the `fwdopt` setting.

br
table
thead
tr
th
strong
Parameter
th
strong
Type
th
strong
Description
th
strong
Possible values
th
strong
Example
tbody
tr
td
code
domain
td
em
string
td
p
strong
Required
p
The domain.
td
p
A valid domain on the cPanel account.
td
code
example.com
tr
td
code
fwdopt
td
em
string
td
p
strong
Required
p
The method to use to handle unroutable mail.
td
ul
li
code
fwd
 — Forward unroutable messages to the 
code
fwdemail
 parameter's address.
li
code
fail
 — Bounce unroutable messages back to the sender, and include the 
code
failmsgs
 parameter's failure message.
li
code
blackhole
 — Send unroutable messages to the 
code
/dev/null/
 directory. This method does 
strong
not
 generate a failure notice.
li
code
pipe
 — Pipe unroutable mail to the 
code
pipefwd
 parameter's application.
td
code
fwd
tr
td
code
fwdemail
td
em
string
td
div
p
The email address to which the system forwards unroutable email.
p
div
Note:
br
p
Use this parameter if you used the 
code
fwd
 method for the 
code
fwdopt
 parameter. 
br
td
A valid email address.
td
code
catchall@example.com
tr
td
code
failmsgs
td
em
string
td
div
p
The failure message to send to the sender of unroutable mail.
p
This parameter defaults to 
code
No such person at this address.
p
div
Note:
br
p
Use this parameter if you used the 
code
fail
 method for the 
code
fwdopt
 parameter. 
br
td
p
A valid string.
td
code
Nobody's home.
tr
td
code
pipefwd
td
em
string
td
div
p
The application to which the system pipes unroutable mail.
p
div
Note:
br
p
Use this parameter if you used the 
code
pipe
 method for the 
code
fwdopt
 parameter. 
br
td
The location of a program or script, relative to the account's home directory.
td
code
mailscript.pl
## Returns

table
thead
tr
th
strong
Return
th
strong
Type
th
strong
Description
th
strong
Possible values
th
strong
Example
tbody
tr
td
code
domain
td
em
string
td
p
The domain.
td
p
A valid domain on the account.
td
code
example.com
tr
td
code
dest
td
em
string
td
The method that the system will use to handle unroutable mail.
td
ul
li
An email address — The system forwards mail to this address.
li
A failure message (string) — The system bounces mail back to the sender, and sends a failure message.
li
code
blackhole
 — The system deletes mail without a failure message.
li
The path to an application — The system pipes mail to this application.
td
br
tr
td
code
reason
td
em
string
td
div
p
A reason for failure.
p
div
Note:
br
p
This function only returns a 
code
reason
 value if it failed. 
br
td
p
A string that describes the error.
td
code
This is an error message.
tr
td
code
result
td
em
Boolean
td
p
Whether the function succeeded.
td
ul
li
code
1
 — The function succeeded.
li
code
0
 — The function failed.
td
code
1