diff --git a/code/web/interface/themes/responsive/DataObjectUtil/property.tpl b/code/web/interface/themes/responsive/DataObjectUtil/property.tpl
index 9ff3938f71..7fd26bc4a4 100644
--- a/code/web/interface/themes/responsive/DataObjectUtil/property.tpl
+++ b/code/web/interface/themes/responsive/DataObjectUtil/property.tpl
@@ -569,6 +569,8 @@
 					{/if}
 				{/foreach}
 			</div>
+			{elseif $property.type == 'sortableList'}
+				{include file="DataObjectUtil/sortableList.tpl"}
 		{/if}
 
 	</div>
diff --git a/code/web/interface/themes/responsive/DataObjectUtil/sortableList.tpl b/code/web/interface/themes/responsive/DataObjectUtil/sortableList.tpl
new file mode 100644
index 0000000000..5a9d50fd92
--- /dev/null
+++ b/code/web/interface/themes/responsive/DataObjectUtil/sortableList.tpl
@@ -0,0 +1,111 @@
+{strip}
+<ol class="list-unstyled" id="sortable">
+	{foreach from=$property.values item=propertyName key=propertyValue}
+		<li draggable="true" style="cursor:grab" data-value='{$propertyValue}'><i class="fas fa-grip-vertical"></i> {$propertyName|escape}</li>
+	{/foreach}
+</ol>
+<input type='hidden' name='{$propName}' id='{$propName}' value='{$propValue|escape}'>
+
+<script type="text/javascript">
+	$(document).ready(function(){
+		refreshListOptions();
+		const sortableList =
+			document.getElementById("sortable");
+		let draggedItem = null;
+
+		function refreshListValue(){
+			let listOptions = [];
+			$( "#sortable li" ).each(function( index ) {
+				listOptions.push($(this).text().trim().replace('|',''));
+			});
+			let text = listOptions.join('|');
+			$("#{$propName}").val(text.trim());
+		}
+
+		function refreshListOptions(drag){
+			let value = $("#{$propName}").val();
+			let optionsFromText = value.split("|");
+			optionsFromText.forEach(textOption => {
+				$('#sortable').children().each(function () {
+					if(textOption.trim() == $(this).data().value){
+						$('#sortable').append($(this));
+					}
+				});
+			});
+		}
+
+		sortableList.addEventListener(
+			"dragstart",
+			(e) => {
+				draggedItem = e.target;
+				setTimeout(() => {
+					e.target.style.display =
+						"none";
+				}, 0);
+			});
+
+		sortableList.addEventListener(
+			"dragend",
+			(e) => {
+				setTimeout(() => {
+					e.target.style.display = "";
+					draggedItem = null;
+					refreshListValue();
+				}, 0);
+			});
+
+		sortableList.addEventListener(
+			"dragover",
+			(e) => {
+				e.preventDefault();
+				const afterElement =
+					getDragAfterElement(
+						sortableList,
+						e.clientY);
+				const currentElement =
+					document.querySelector(
+						".dragging");
+				if (afterElement == null) {
+					sortableList.appendChild(
+						draggedItem
+					);
+				} else {
+					sortableList.insertBefore(
+						draggedItem,
+						afterElement
+					);
+				}
+			});
+
+		const getDragAfterElement = (
+			container, y
+		) => {
+			const draggableElements = [
+				...container.querySelectorAll(
+					"li:not(.dragging)"
+				),
+			];
+
+			return draggableElements.reduce(
+				(closest, child) => {
+					const box =
+						child.getBoundingClientRect();
+					const offset =
+						y - box.top - box.height / 2;
+					if (
+						offset < 0 &&
+						offset > closest.offset) {
+						return {
+							offset: offset,
+							element: child,
+						};
+					} else {
+						return closest;
+					}
+				}, {
+					offset: Number.NEGATIVE_INFINITY,
+				}
+			).element;
+		};
+	});
+</script>
\ No newline at end of file
diff --git a/code/web/release_notes/24.07.00.MD b/code/web/release_notes/24.07.00.MD
index d68f76c8be..83926fbc8a 100644
--- a/code/web/release_notes/24.07.00.MD
+++ b/code/web/release_notes/24.07.00.MD
@@ -18,6 +18,7 @@
 
 // pedro
 - Added a new feature: SMTP setting. This allows for SMTP configuration to be utilized when sending e-mails from Aspen.
+- Added a new feature: System variable 'preferredMailSender'. This allows for ordering the different mail senders (SMTP, SendGrid, AmazonSES) to set the priority order in which they should be used.
 
 // other
 
diff --git a/code/web/sys/DBMaintenance/version_updates/24.07.00.php b/code/web/sys/DBMaintenance/version_updates/24.07.00.php
index ad9bbd9cbb..050d4100d3 100644
--- a/code/web/sys/DBMaintenance/version_updates/24.07.00.php
+++ b/code/web/sys/DBMaintenance/version_updates/24.07.00.php
@@ -50,6 +50,15 @@ function getUpdates24_07_00(): array {
 			],
 		], //permissions_create_administer_smtp
 
+		'systemVariables_preferredMailSender' => [
+			'title' => 'System Variables - Preferred Mail Sender',
+			'description' => 'Allow sortable configuration of which mail sender to use by order of priority.',
+			'sql' => [
+				"alter table system_variables ADD COLUMN preferredMailSender varchar(128) DEFAULT 'SMTP|AmazonSES|SendGrid'",
+			],
+		],
+		//systemVariables_preferredMailSender
+
 		//other
 
 
diff --git a/code/web/sys/DataObjectUtil.php b/code/web/sys/DataObjectUtil.php
index 8b907e2b90..7c34222c3f 100644
--- a/code/web/sys/DataObjectUtil.php
+++ b/code/web/sys/DataObjectUtil.php
@@ -575,6 +575,8 @@ static function processProperty(DataObject $object, $property) {
 			}
 
 			$object->$propertyName = $values;
+		} elseif ($property['type'] == 'sortableList') {
+			$object->setProperty($propertyName, $_REQUEST[$propertyName], $property);
 		}
 	}
 }
\ No newline at end of file
diff --git a/code/web/sys/Email/Mailer.php b/code/web/sys/Email/Mailer.php
index e4fbd2e53b..fe2c12cfa9 100644
--- a/code/web/sys/Email/Mailer.php
+++ b/code/web/sys/Email/Mailer.php
@@ -22,20 +22,17 @@ public function send($to, $subject, $body, $replyTo = null, $htmlBody = null, $a
 		require_once ROOT_DIR . '/sys/Email/AmazonSesSetting.php';
 		require_once ROOT_DIR . '/sys/Email/SMTPSetting.php';
 		require_once ROOT_DIR . '/sys/CurlWrapper.php';
+		require_once ROOT_DIR . '/sys/SystemVariables.php';
 		//TODO: Do validation of the address
-		$amazonSesSettings = new AmazonSesSetting();
-		$smtpServerSettings = new SMTPSetting();
 
-		if($smtpServerSettings->find(true)) {
-			$result = $this->sendViaSMTP($smtpServerSettings, $to, $replyTo, $subject, $body, $htmlBody, $attachments);
-		}elseif ($amazonSesSettings->find(true)) {
-			$result = $this->sendViaAmazonSes($amazonSesSettings, $to, $replyTo, $subject, $body, $htmlBody, $attachments);
-		} else {
-			$sendGridSettings = new SendGridSetting();
-			if ($sendGridSettings->find(true)) {
-				$result = $this->sendViaSendGrid($sendGridSettings, $to, $replyTo, $subject, $body, $htmlBody);
-			} else {
-				$result = false;
+		$systemVariables = new SystemVariables();
+		if ($systemVariables->find(true) && !empty($systemVariables->preferredMailSender)) {
+			$mailSenders = explode("|", $systemVariables->preferredMailSender);
+			foreach ($mailSenders as $mailSender){
+				$result = $this->sendViaAbstractSender($mailSender, $to, $replyTo, $subject, $body, $htmlBody, $attachments);
+				if ($result) {
+					break;
+				}
 			}
 		}
 
@@ -145,4 +142,25 @@ private function sendViaAmazonSes(AmazonSesSetting $amazonSesSettings, string $t
 	private function sendViaSMTP(SMTPSetting $smtpSettings, string $to, ?string $replyTo, string $subject, ?string $body, ?string $htmlBody, ?array $attachments): bool {
 		return $smtpSettings->sendEmail($to, $replyTo, $subject, $body, $htmlBody, $attachments);
 	}
+
+	private function sendViaAbstractSender($mailSender, $to, $replyTo, $subject, $body, $htmlBody, $attachments) {
+		$result = false;
+		if($mailSender == 'AmazonSES') {
+			$amazonSesSettings = new AmazonSesSetting();
+			if($amazonSesSettings->find(true)){
+				$result = $this->sendViaAmazonSes($amazonSesSettings, $to, $replyTo, $subject, $body, $htmlBody, $attachments);
+			}
+		} else if($mailSender == 'SendGrid') {
+			$sendGridSettings = new SendGridSetting();
+			if($sendGridSettings->find(true)){
+				$result = $this->sendViaSendGrid($sendGridSettings, $to, $replyTo, $subject, $body, $htmlBody);
+			}
+		} else if($mailSender == 'SMTP') {
+			$smtpSettings = new SMTPSetting();
+			if($smtpSettings->find(true)){
+				$result = $this->sendViaSMTP($smtpSettings, $to, $replyTo, $subject, $body, $htmlBody, $attachments);
+			}
+		}
+		return $result;
+	}
 }
\ No newline at end of file
diff --git a/code/web/sys/SystemVariables.php b/code/web/sys/SystemVariables.php
index 8c0542e5bc..82ab838db9 100644
--- a/code/web/sys/SystemVariables.php
+++ b/code/web/sys/SystemVariables.php
@@ -7,6 +7,7 @@ class SystemVariables extends DataObject {
 	public $errorEmail;
 	public $ticketEmail;
 	public $searchErrorEmail;
+	public $preferredMailSender;
 	public $loadCoversFrom020z;
 	public $currencyCode;
 	public $runNightlyFullIndex;
@@ -59,26 +60,46 @@ static function getObjectStructure($context = ''): array {
 				'description' => 'URL of the community content server',
 				'maxLength' => 128,
 			],
-			'errorEmail' => [
-				'property' => 'errorEmail',
-				'type' => 'text',
-				'label' => 'Error Email Address',
-				'description' => 'Email Address to send errors to',
-				'maxLength' => 128,
-			],
-			'ticketEmail' => [
-				'property' => 'ticketEmail',
-				'type' => 'text',
-				'label' => 'Ticket Email Address',
-				'description' => 'Email Address to send tickets from administrators to',
-				'maxLength' => 128,
-			],
-			'searchErrorEmail' => [
-				'property' => 'searchErrorEmail',
-				'type' => 'text',
-				'label' => 'Search Error Email Address',
-				'description' => 'Email Address to send errors to',
-				'maxLength' => 128,
+			'emailSection' => [
+				'property' => 'emailSection',
+				'type' => 'section',
+				'label' => 'Email Settings',
+				'hideInLists' => true,
+				'expandByDefault' => true,
+				'properties' => [
+					'errorEmail' => [
+						'property' => 'errorEmail',
+						'type' => 'text',
+						'label' => 'Error Email Address',
+						'description' => 'Email Address to send errors to',
+						'maxLength' => 128,
+					],
+					'ticketEmail' => [
+						'property' => 'ticketEmail',
+						'type' => 'text',
+						'label' => 'Ticket Email Address',
+						'description' => 'Email Address to send tickets from administrators to',
+						'maxLength' => 128,
+					],
+					'searchErrorEmail' => [
+						'property' => 'searchErrorEmail',
+						'type' => 'text',
+						'label' => 'Search Error Email Address',
+						'description' => 'Email Address to send errors to',
+						'maxLength' => 128,
+					],
+					'preferredMailSender' => [
+						'property' => 'preferredMailSender',
+						'type' => 'sortableList',
+						'values' => [
+							'AmazonSES' => 'AmazonSES',
+							'SendGrid' => 'SendGrid',
+							'SMTP' => 'SMTP',
+						],
+						'label' => 'Preferred Mail Sender Order',
+						'description' => 'Sort order of preferred mail sender',
+					],
+				]
 			],
 			'googleBucket' => [
 				'property' => 'googleBucket',
diff --git a/install/aspen.sql b/install/aspen.sql
index b96acb6881..98f86fd97f 100644
--- a/install/aspen.sql
+++ b/install/aspen.sql
@@ -4949,6 +4949,7 @@ CREATE TABLE `system_variables` (
   `errorEmail` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL,
   `ticketEmail` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL,
   `searchErrorEmail` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL,
+  `preferredMailSender` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT 'SMTP|AmazonSES|SendGrid',
   `loadCoversFrom020z` tinyint(1) DEFAULT '0',
   `runNightlyFullIndex` tinyint(1) DEFAULT '0',
   `currencyCode` char(3) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT 'USD',