diff --git a/app/DataMapper/CompanySettings.php b/app/DataMapper/CompanySettings.php
index f99d52ce5d5b..04abd19bc01a 100644
--- a/app/DataMapper/CompanySettings.php
+++ b/app/DataMapper/CompanySettings.php
@@ -441,7 +441,16 @@ class CompanySettings extends BaseSettings
 
     public $send_email_on_mark_paid = false;
 
+    public $postmark_secret = '';
+    
+    public $mailgun_secret = '';
+    
+    public $mailgun_domain = '';
+
     public static $casts = [
+        'postmark_secret'                    => 'string',
+        'mailgun_secret'                     => 'string',
+        'mailgun_domain'                     => 'string',
         'send_email_on_mark_paid'            => 'bool',
         'vendor_portal_enable_uploads'       => 'bool',
         'besr_id'                            => 'string',
diff --git a/app/Http/Controllers/PostMarkController.php b/app/Http/Controllers/PostMarkController.php
index 0a8fcc6e5a8a..05d571c9178d 100644
--- a/app/Http/Controllers/PostMarkController.php
+++ b/app/Http/Controllers/PostMarkController.php
@@ -74,7 +74,7 @@ class PostMarkController extends BaseController
      */
     public function webhook(Request $request)
     {
-        if ($request->header('X-API-SECURITY') && $request->header('X-API-SECURITY') == config('postmark.secret')) {
+        if ($request->header('X-API-SECURITY') && $request->header('X-API-SECURITY') == config('services.postmark.token')) {
             ProcessPostmarkWebhook::dispatch($request->all());
 
             return response()->json(['message' => 'Success'], 200);
diff --git a/app/Http/Requests/Company/UpdateCompanyRequest.php b/app/Http/Requests/Company/UpdateCompanyRequest.php
index ab9181a31ce0..bf017e6e3068 100644
--- a/app/Http/Requests/Company/UpdateCompanyRequest.php
+++ b/app/Http/Requests/Company/UpdateCompanyRequest.php
@@ -40,8 +40,6 @@ class UpdateCompanyRequest extends Request
         return auth()->user()->can('edit', $this->company);
     }
 
-
-
     public function rules()
     {
         $input = $this->all();
diff --git a/app/Jobs/Mail/NinjaMailerJob.php b/app/Jobs/Mail/NinjaMailerJob.php
index c7dc30ecbce7..6c3c941b5f67 100644
--- a/app/Jobs/Mail/NinjaMailerJob.php
+++ b/app/Jobs/Mail/NinjaMailerJob.php
@@ -34,6 +34,7 @@ use GuzzleHttp\Exception\ClientException;
 use Illuminate\Bus\Queueable;
 use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Mail\Mailer;
 use Illuminate\Queue\InteractsWithQueue;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Support\Facades\App;
@@ -63,10 +64,18 @@ class NinjaMailerJob implements ShouldQueue
 
     private $mailer;
 
+    protected $client_postmark_secret = false;
+
+    protected $client_mailgun_secret = false;
+
+    protected $client_mailgun_domain = false;
+
+
     public function __construct(NinjaMailerObject $nmo, bool $override = false)
     {
 
         $this->nmo = $nmo;
+
         $this->override = $override;
 
     }
@@ -80,12 +89,14 @@ class NinjaMailerJob implements ShouldQueue
         /* Serializing models from other jobs wipes the primary key */
         $this->company = Company::where('company_key', $this->nmo->company->company_key)->first();
 
+        /* If any pre conditions fail, we return early here */
         if($this->preFlightChecksFail())
             return;
 
         /* Set the email driver */
         $this->setMailDriver();
 
+        /* Run time we set Reply To Email*/
         if (strlen($this->nmo->settings->reply_to_email) > 1) {
             
             if(property_exists($this->nmo->settings, 'reply_to_name'))
@@ -100,8 +111,10 @@ class NinjaMailerJob implements ShouldQueue
             $this->nmo->mailable->replyTo($this->company->owner()->email, $this->company->owner()->present()->name());
         }
 
+        /* Run time we set the email tag */
         $this->nmo->mailable->tag($this->company->company_key);
 
+        /* If we have an invitation present, we pass the invitation key into the email headers*/
         if($this->nmo->invitation)
         {
 
@@ -115,13 +128,25 @@ class NinjaMailerJob implements ShouldQueue
 
         //send email
         try {
-
+            
             nlog("trying to send to {$this->nmo->to_user->email} ". now()->toDateTimeString());
             nlog("Using mailer => ". $this->mailer);
 
-            Mail::mailer($this->mailer)
-                ->to($this->nmo->to_user->email)
-                ->send($this->nmo->mailable);
+            $mailer = Mail::mailer($this->mailer);
+
+            if($this->client_postmark_secret){
+                nlog("inside postmark config");
+                nlog($this->client_postmark_secret);
+                $mailer->postmark_config($this->client_postmark_secret);
+            }
+
+            if($this->client_mailgun_secret){
+                $mailer->mailgun_config($this->client_mailgun_secret, $this->client_mailgun_domain);
+            }
+
+                $mailer
+                    ->to($this->nmo->to_user->email)
+                    ->send($this->nmo->mailable);
 
             /* Count the amount of emails sent across all the users accounts */
             Cache::increment($this->company->account->key);
@@ -135,6 +160,8 @@ class NinjaMailerJob implements ShouldQueue
         } catch (\Exception | \RuntimeException | \Google\Service\Exception $e) {
             
             nlog("error failed with {$e->getMessage()}");
+            
+            $this->cleanUpMailers();
 
             $message = $e->getMessage();
 
@@ -176,12 +203,18 @@ class NinjaMailerJob implements ShouldQueue
     
         }
 
-        
-        
+        //always dump the drivers to prevent reuse 
+        $this->cleanUpMailers();
+
     }
 
-    /* Switch statement to handle failure notifications */
-    private function entityEmailFailed($message)
+    /**
+     * Entity notification when an email fails to send
+     * 
+     * @param  string $message
+     * @return void
+     */
+    private function entityEmailFailed($message): void
     {
         $class = get_class($this->nmo->entity);
 
@@ -202,6 +235,9 @@ class NinjaMailerJob implements ShouldQueue
 
     }
 
+    /**
+     * Initializes the configured Mailer
+     */
     private function setMailDriver()
     {
         /* Singletons need to be rebooted each time just in case our Locale is changing*/
@@ -216,23 +252,34 @@ class NinjaMailerJob implements ShouldQueue
             case 'gmail':
                 $this->mailer = 'gmail';
                 $this->setGmailMailer();
-                break;
+                return;
             case 'office365':
                 $this->mailer = 'office365';
                 $this->setOfficeMailer();
-                break;
+                return;
+            case 'client_postmark':
+                $this->mailer = 'postmark';
+                $this->setPostmarkMailer();
+                return;
+            case 'client_mailgun':
+                $this->mailer = 'mailgun';
+                $this->setMailgunMailer();
+                return;
+
             default:
                 break;
         }
 
-
         if(Ninja::isSelfHost())
             $this->setSelfHostMultiMailer();
 
-
     }
 
-    private function setSelfHostMultiMailer()
+    /**
+     * Allows configuration of multiple mailers
+     * per company for use by self hosted users
+     */
+    private function setSelfHostMultiMailer(): void
     {
 
         if (env($this->company->id . '_MAIL_HOST')) 
@@ -259,21 +306,117 @@ class NinjaMailerJob implements ShouldQueue
 
     }
 
-
-    private function setOfficeMailer()
+    /**
+     * Ensure we discard any data that is not required
+     * 
+     * @return void
+     */
+    private function cleanUpMailers(): void
     {
-        $sending_user = $this->nmo->settings->gmail_sending_user_id;
+        $this->client_postmark_secret = false;
 
-        $user = User::find($this->decodePrimaryKey($sending_user));
-        
+        $this->client_mailgun_secret = false;
+
+        $this->client_mailgun_domain = false;
+
+        //always dump the drivers to prevent reuse 
+        app('mail.manager')->forgetMailers();
+    }
+
+    /** 
+     * Check to ensure no cross account
+     * emails can be sent.
+     * 
+     * @param User $user
+     */
+    private function checkValidSendingUser($user)
+    {
         /* Always ensure the user is set on the correct account */
         if($user->account_id != $this->company->account_id){
 
             $this->nmo->settings->email_sending_method = 'default';
             return $this->setMailDriver();
+        }
+    }
 
+    /**
+     * Resolves the sending user
+     * when configuring the Mailer
+     * on behalf of the client
+     * 
+     * @return User $user
+     */
+    private function resolveSendingUser(): ?User
+    {
+        $sending_user = $this->nmo->settings->gmail_sending_user_id;
+
+        $user = User::find($this->decodePrimaryKey($sending_user));
+
+        return $user;
+    }
+
+    /**
+     * Configures Mailgun using client supplied secret
+     * as the Mailer
+     */
+    private function setMailgunMailer()
+    {
+        if(strlen($this->nmo->settings->mailgun_secret) > 2 && strlen($this->nmo->settings->mailgun_domain) > 2){
+            $this->client_mailgun_secret = $this->nmo->settings->mailgun_secret;
+            $this->client_mailgun_domain = $this->nmo->settings->mailgun_domain;
+        }
+        else{
+            $this->nmo->settings->email_sending_method = 'default';
+            return $this->setMailDriver();
         }
 
+
+        $user = $this->resolveSendingUser();
+
+            $this->nmo
+             ->mailable
+             ->from($user->email, $user->name());
+    }
+
+    /**
+     * Configures Postmark using client supplied secret
+     * as the Mailer
+     */
+    private function setPostmarkMailer()
+    {
+        if(strlen($this->nmo->settings->postmark_secret) > 2){
+            $this->client_postmark_secret = $this->nmo->settings->postmark_secret;
+        }
+        else{
+            $this->nmo->settings->email_sending_method = 'default';
+            return $this->setMailDriver();
+        }
+
+        $user = $this->resolveSendingUser();
+
+            $this->nmo
+             ->mailable
+             ->from($user->email, $user->name());
+    }
+
+    /**
+     * Configures Microsoft via Oauth
+     * as the Mailer
+     */
+    private function setOfficeMailer()
+    {
+        $user = $this->resolveSendingUser();
+        
+        /* Always ensure the user is set on the correct account */
+        // if($user->account_id != $this->company->account_id){
+
+        //     $this->nmo->settings->email_sending_method = 'default';
+        //     return $this->setMailDriver();
+
+        // }
+
+        $this->checkValidSendingUser($user);
+        
         nlog("Sending via {$user->name()}");
 
         $token = $this->refreshOfficeToken($user);
@@ -301,21 +444,27 @@ class NinjaMailerJob implements ShouldQueue
         sleep(rand(1,3));
     }
 
+    /**
+     * Configures GMail via Oauth
+     * as the Mailer
+     */
     private function setGmailMailer()
     {
 
-        $sending_user = $this->nmo->settings->gmail_sending_user_id;
+        $user = $this->resolveSendingUser();
 
-        $user = User::find($this->decodePrimaryKey($sending_user));
+        $this->checkValidSendingUser($user);
 
         /* Always ensure the user is set on the correct account */
-        if($user->account_id != $this->company->account_id){
+        // if($user->account_id != $this->company->account_id){
 
-            $this->nmo->settings->email_sending_method = 'default';
-            return $this->setMailDriver();
+        //     $this->nmo->settings->email_sending_method = 'default';
+        //     return $this->setMailDriver();
 
-        }
+        // }
         
+        $this->checkValidSendingUser($user);
+
         nlog("Sending via {$user->name()}");
 
         $google = (new Google())->init();
@@ -370,7 +519,14 @@ class NinjaMailerJob implements ShouldQueue
 
     }
 
-    private function preFlightChecksFail()
+    /**
+     * On the hosted platform we scan all outbound email for 
+     * spam. This sequence processes the filters we use on all
+     * emails.
+     * 
+     * @return bool
+     */
+    private function preFlightChecksFail(): bool
     {
 
         /* If we are migrating data we don't want to fire any emails */
@@ -396,6 +552,8 @@ class NinjaMailerJob implements ShouldQueue
         /* If the account is verified, we allow emails to flow */
         if(Ninja::isHosted() && $this->company->account && $this->company->account->is_verified_account) {
 
+            //11-01-2022
+
             /* Continue to analyse verified accounts in case they later start sending poor quality emails*/
             // if(class_exists(\Modules\Admin\Jobs\Account\EmailQuality::class))
             //     (new \Modules\Admin\Jobs\Account\EmailQuality($this->nmo, $this->company))->run();
@@ -423,7 +581,14 @@ class NinjaMailerJob implements ShouldQueue
         return false;
     }
 
-    private function logMailError($errors, $recipient_object)
+    /**
+     * Logs any errors to the SystemLog
+     * 
+     * @param  string $errors
+     * @param  App\Models\User | App\Models\Client $recipient_object
+     * @return void
+     */
+    private function logMailError($errors, $recipient_object) :void
     {
 
         (new SystemLogger(
@@ -446,11 +611,12 @@ class NinjaMailerJob implements ShouldQueue
 
     }
 
-    public function failed($exception = null)
-    {
-        
-    }
-
+    /**
+     * Attempts to refresh the Microsoft refreshToken
+     * 
+     * @param  App\Models\User
+     * @return string | boool
+     */
     private function refreshOfficeToken($user)
     {
         $expiry = $user->oauth_user_token_expiry ?: now()->subDay();
@@ -469,8 +635,6 @@ class NinjaMailerJob implements ShouldQueue
                     'refresh_token' => $user->oauth_user_refresh_token
                 ],
             ])->getBody()->getContents());
-
-            nlog($token);
             
             if($token){
                 
@@ -489,6 +653,11 @@ class NinjaMailerJob implements ShouldQueue
         
     }
 
+    public function failed($exception = null)
+    {
+        
+    }
+
     /**
      * Is this the cleanest way to requeue a job?
      * 
diff --git a/app/Jobs/Mail/NinjaMailerObject.php b/app/Jobs/Mail/NinjaMailerObject.php
index 43541dbfc7cf..9aa86095b913 100644
--- a/app/Jobs/Mail/NinjaMailerObject.php
+++ b/app/Jobs/Mail/NinjaMailerObject.php
@@ -31,9 +31,11 @@ class NinjaMailerObject
     /* Variable for cascading notifications */
     public $entity_string = false;
 
+    /* @var bool | App\Models\InvoiceInvitation | app\Models\QuoteInvitation | app\Models\CreditInvitation | app\Models\RecurringInvoiceInvitation | app\Models\PurchaseOrderInvitation $invitation*/
     public $invitation = false;
 
     public $template = false;
 
+    /* @var bool | App\Models\Invoice | app\Models\Quote | app\Models\Credit | app\Models\RecurringInvoice | app\Models\PurchaseOrder $invitation*/
     public $entity = false;
 }
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index d2ebc9544796..bc53eb4067a8 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -21,6 +21,7 @@ use App\Utils\TruthSource;
 use Illuminate\Cache\RateLimiting\Limit;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\Relation;
+use Illuminate\Mail\Mailer;
 use Illuminate\Queue\Events\JobProcessing;
 use Illuminate\Support\Facades\App;
 use Illuminate\Support\Facades\Blade;
@@ -41,14 +42,8 @@ class AppServiceProvider extends ServiceProvider
     public function boot()
     {
 
-        /* Limits the number of parallel jobs fired per minute when checking data*/
-        RateLimiter::for('checkdata', function ($job) {
-            return  Limit::perMinute(100);
-        });
-
         Relation::morphMap([
             'invoices'  => Invoice::class,
-            //  'credits'   => \App\Models\Credit::class,
             'proposals' => Proposal::class,
         ]);
 
@@ -83,7 +78,30 @@ class AppServiceProvider extends ServiceProvider
         Mail::extend('office365', function () {
             return new Office365MailTransport();
         });
+
+        Mailer::macro('postmark_config', function (string $postmark_key) {
+     
+            Mailer::setSymfonyTransport(app('mail.manager')->createSymfonyTransport([
+                'transport' => 'postmark',
+                'token' => $postmark_key
+            ]));
+     
+            return $this;
+
+        });
         
+        Mailer::macro('mailgun_config', function ($secret, $domain) {
+
+            Mailer::setSymfonyTransport(app('mail.manager')->createSymfonyTransport([
+                'transport' => 'mailgun',
+                'secret' => $secret,
+                'domain' => $domain,
+                'endpoint' => config('services.mailgun.endpoint'),
+                'scheme' => config('services.mailgun.scheme'),
+            ]));
+ 
+            return $this;
+        });
     }
 
     /**
diff --git a/config/postmark.php b/config/postmark.php
index fba48117e01f..9550df3d68ef 100644
--- a/config/postmark.php
+++ b/config/postmark.php
@@ -2,7 +2,7 @@
 
 return [
 
-    /*
+    /* @deprecated
     |--------------------------------------------------------------------------
     | Postmark credentials
     |--------------------------------------------------------------------------
diff --git a/config/services.php b/config/services.php
index aec15f6fc8d7..36d6a704ec6b 100644
--- a/config/services.php
+++ b/config/services.php
@@ -19,14 +19,14 @@ return [
     */
 
     'mailgun' => [
-        'domain' => env('MAILGUN_DOMAIN'),
-        'secret' => env('MAILGUN_SECRET'),
+        'domain' => env('MAILGUN_DOMAIN',''),
+        'secret' => env('MAILGUN_SECRET',''),
         'endpoint' => env('MAILGUN_ENDPOINT', 'api.mailgun.net'),
         'scheme' => 'https',
     ],
 
     'postmark' => [
-        'token' => env('POSTMARK_SECRET'),
+        'token' => env('POSTMARK_SECRET',''),
     ],
 
     'microsoft' => [
diff --git a/tests/Integration/PostmarkWebhookTest.php b/tests/Integration/PostmarkWebhookTest.php
index c56996c4e8b0..2ad08ff60fb2 100644
--- a/tests/Integration/PostmarkWebhookTest.php
+++ b/tests/Integration/PostmarkWebhookTest.php
@@ -29,7 +29,7 @@ class PostmarkWebhookTest extends TestCase
     {
         parent::setUp();
 
-        if (! config('postmark.secret')) {
+        if (! config('services.postmark.token')) {
             $this->markTestSkipped('Postmark Secret Set');
         }
 
@@ -58,7 +58,7 @@ class PostmarkWebhookTest extends TestCase
         $response->assertStatus(403);
 
         $response = $this->withHeaders([
-            'X-API-SECURITY' => config('postmark.secret'),
+            'X-API-SECURITY' => config('services.postmark.token'),
         ])->post('/api/v1/postmark_webhook', $data);
 
         $response->assertStatus(200);
@@ -106,7 +106,7 @@ class PostmarkWebhookTest extends TestCase
         $response->assertStatus(403);
 
         $response = $this->withHeaders([
-            'X-API-SECURITY' => config('postmark.secret'),
+            'X-API-SECURITY' => config('services.postmark.token'),
         ])->post('/api/v1/postmark_webhook', $data);
 
         $response->assertStatus(200);