SendAdminEmail API - Send array to mergefields

[Nullified]

I am trying to pass an array to mergefield data. Is this possible?

 

My Script:

$postfields["username"] = 'username';
$postfields["password"] = md5('password');
$postfields["action"] = "SendAdminEmail";
$postfields["messagename"] = "Domain Synchronization Report";
$postfields["mergefields[dtg]"] = date("j F Y @ G:i:s");
$postfields["mergefields[exemptions]"] = $exemptions;

 

$exemptions is either blank or an array of data.

 

My messagename Admin Template:

Domain Pricing Synchronization Cron Report for {$dtg}

{if is_array($exemptions)}Domain Pricing Exemptions:
{foreach from=$exemptions key=k item=v}
{if $k.register} - $k registrations have been exempted from auto update.{/if}
{if $k.transfer} - $k transfers have been exempted from auto update.{/if}
{if $k.renew} - $k renewals have been exempted from auto update.{/if}
{/foreach}
{/if}

Domain Pricing Synchronization Complete

 

$dtg sends the date through the email just fine, but the array data for $exemptions (and the other arrays) is gone. I have tested the $postfields[mergefields[*]] variables for valid array data and they are fine in the script. They are however lost once sent to the WHMCS API.