diff --git a/app/Jobs/Mail/NinjaMailerJob.php b/app/Jobs/Mail/NinjaMailerJob.php
index 3f33759a0b17..22a9069c5ac8 100644
--- a/app/Jobs/Mail/NinjaMailerJob.php
+++ b/app/Jobs/Mail/NinjaMailerJob.php
@@ -363,7 +363,7 @@ nlog("nn");
         return $this;
     }
 
-    private function configureSmtpMailer(): void
+    private function configureSmtpMailer()
     {
 
         $company = $this->company;
@@ -376,6 +376,16 @@ nlog("nn");
         $smtp_local_domain = strlen($company->smtp_local_domain) > 2 ? $company->smtp_local_domain : null;
         $smtp_verify_peer = $company->smtp_verify_peer ?? true;
 
+        if(strlen($smtp_host ?? '') <= 1 ||
+        strlen($smtp_username ?? '') <= 1 ||
+        strlen($smtp_password ?? '') <= 1
+        )
+        {
+            $this->nmo->settings->email_sending_method = 'default';
+            return $this->setMailDriver();
+        }
+
+
         config([
             'mail.mailers.smtp' => [
                 'transport' => 'smtp',
diff --git a/app/Services/Email/Email.php b/app/Services/Email/Email.php
index 71369529727d..661b8aef52c4 100644
--- a/app/Services/Email/Email.php
+++ b/app/Services/Email/Email.php
@@ -589,7 +589,7 @@ $this->entityEmailFailed($message);
         return $this;
     }
 
-    private function configureSmtpMailer(): void
+    private function configureSmtpMailer()
     {
 
         $company = $this->company;
@@ -602,6 +602,14 @@ $this->entityEmailFailed($message);
         $smtp_local_domain = strlen($company->smtp_local_domain) > 2 ? $company->smtp_local_domain : null;
         $smtp_verify_peer = $company->smtp_verify_peer ?? true;
 
+        if(strlen($smtp_host ?? '') <= 1 ||
+        strlen($smtp_username ?? '') <= 1 ||
+        strlen($smtp_password ?? '') <= 1
+        ) {
+            $this->email_object->settings->email_sending_method = 'default';
+            return $this->setMailDriver();
+        }
+
         config([
             'mail.mailers.smtp' => [
                 'transport' => 'smtp',