diff --git a/application/Api/v1/PreorderApicontroller.php b/application/Api/v1/PreorderApicontroller.php
index 468068f6a..8197f78a1 100644
--- a/application/Api/v1/PreorderApicontroller.php
+++ b/application/Api/v1/PreorderApicontroller.php
@@ -830,8 +830,14 @@ class PreorderApicontroller extends mfBaseApicontroller {
         //$preorder_data['price_setup'] = round($product->price_setup - (($product->price_setup) / 100) * TT_PREORDER_DISCOUNT_BUSINESS);
         $preorder_data['price_setup'] = ($product->attributes["presales_setup_price_business"]->value) ? $product->attributes["presales_setup_price_business"]->value : $product->price_setup;
       }
-      
+
+      if($preorder_data['price_setup']) {
+          $preorder_data['price_setup'] = str_replace(',', '.', $preorder_data['price_setup']);
+      }
     }
+
+
+
     
     /*
      * get customer data
@@ -1021,6 +1027,8 @@ class PreorderApicontroller extends mfBaseApicontroller {
     }
     
     if(!$preorder_id || !$preorder->ucode) {
+      $err_id = uniqid('err');
+      $this->log->error(__METHOD__.": [$err_id] Error saving Preorder");
       if($unit_changed) $unit->rollbackTransaction();
       return mfResponse::InternalServerError();
     }
diff --git a/application/Emailnotification/Emailnotification.php b/application/Emailnotification/Emailnotification.php
index 1fa645924..491567bf3 100644
--- a/application/Emailnotification/Emailnotification.php
+++ b/application/Emailnotification/Emailnotification.php
@@ -122,6 +122,18 @@ class Emailnotification {
     //$log->debug(print_r($headers, true));
     
     $mail =& Mail::factory('mail', ["-f ".$this->email_from]);
+    /*
+     * PHP 8's mail() function now outputs proper line endings in headers (CRLF instead of LF).
+     * Mail_mail < 2.0 would detect a unix system and change the headers line ending to LF.
+     * On Mail submission to Exim (via sendmail), mail() adds its own headers first with CRLF line ending,
+     * making Exim treat every subsequent header's LF as an invalid line ending, adding a whitespace after the LF,
+     * making all our custom headers into one long header.
+     *
+     * See: https://www.exim.org/exim-html-current/doc/html/spec_html/ch-message_processing.html#SECTlineendings
+     *
+     * So we force CRLF line endings for headers here.
+     */
+    $mail->sep = "\r\n";
     $mail->send($this->email_to, $headers, $body);
   }