diff --git a/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php b/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
index edb52c3ad89..5e103bfc5c0 100644
--- a/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
+++ b/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
@@ -26,6 +26,7 @@
 namespace OCA\DAV\CalDAV\Schedule;
 
 use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\Defaults;
 use OCP\IConfig;
 use OCP\IL10N;
 use OCP\ILogger;
@@ -79,6 +80,9 @@ class IMipPlugin extends SabreIMipPlugin {
 	/** @var IURLGenerator */
 	private $urlGenerator;
 
+	/** @var Defaults */
+	private $defaults;
+
 	const MAX_DATE = '2038-01-01';
 
 	const METHOD_REQUEST = 'request';
@@ -92,9 +96,10 @@ class IMipPlugin extends SabreIMipPlugin {
 	 * @param ITimeFactory $timeFactory
 	 * @param L10NFactory $l10nFactory
 	 * @param IUrlGenerator $urlGenerator
+	 * @param Defaults $defaults
 	 * @param string $userId
 	 */
-	public function __construct(IConfig $config, IMailer $mailer, ILogger $logger, ITimeFactory $timeFactory, L10NFactory $l10nFactory, IURLGenerator $urlGenerator, $userId) {
+	public function __construct(IConfig $config, IMailer $mailer, ILogger $logger, ITimeFactory $timeFactory, L10NFactory $l10nFactory, IURLGenerator $urlGenerator, Defaults $defaults, $userId) {
 		parent::__construct('');
 		$this->userId = $userId;
 		$this->config = $config;
@@ -103,6 +108,7 @@ class IMipPlugin extends SabreIMipPlugin {
 		$this->timeFactory = $timeFactory;
 		$this->l10nFactory = $l10nFactory;
 		$this->urlGenerator = $urlGenerator;
+		$this->defaults = $defaults;
 	}
 
 	/**
@@ -202,7 +208,11 @@ class IMipPlugin extends SabreIMipPlugin {
 			'meeting_url' => (string)$meetingUrl ?: $defaultVal,
 		);
 
+		$fromEMail = \OCP\Util::getDefaultEmailAddress('invitations-noreply');
+		$fromName = $l10n->t('%s via %s', [$senderName, $this->defaults->getName()]);
+
 		$message = $this->mailer->createMessage()
+			->setFrom([$fromEMail => $fromName])
 			->setReplyTo([$sender => $senderName])
 			->setTo([$recipient => $recipientName]);
 
diff --git a/apps/dav/tests/unit/CalDAV/Schedule/IMipPluginTest.php b/apps/dav/tests/unit/CalDAV/Schedule/IMipPluginTest.php
index ee52cab2814..3f89002ab98 100644
--- a/apps/dav/tests/unit/CalDAV/Schedule/IMipPluginTest.php
+++ b/apps/dav/tests/unit/CalDAV/Schedule/IMipPluginTest.php
@@ -29,6 +29,7 @@ namespace OCA\DAV\Tests\unit\CalDAV\Schedule;
 use OC\Mail\Mailer;
 use OCA\DAV\CalDAV\Schedule\IMipPlugin;
 use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\Defaults;
 use OCP\IConfig;
 use OCP\IL10N;
 use OCP\ILogger;
@@ -46,6 +47,7 @@ class IMipPluginTest extends TestCase {
 
 	public function testDelivery() {
 		$mailMessage = $this->createMock(IMessage::class);
+		$mailMessage->method('setFrom')->willReturn($mailMessage);
 		$mailMessage->method('setReplyTo')->willReturn($mailMessage);
 		$mailMessage->method('setTo')->willReturn($mailMessage);
 		/** @var Mailer | \PHPUnit_Framework_MockObject_MockObject $mailer */
@@ -68,8 +70,13 @@ class IMipPluginTest extends TestCase {
 		$l10nFactory->method('get')->willReturn($l10n);
 		/** @var IURLGenerator | \PHPUnit_Framework_MockObject_MockObject $urlGenerator */
 		$urlGenerator = $this->createMock(IURLGenerator::class);
+		/** @var Defaults | \PHPUnit_Framework_MockObject_MockObject $defaults */
+		$defaults = $this->createMock(Defaults::class);
+		$defaults->expects($this->once())
+			->method('getName')
+			->will($this->returnValue('Instance Name 123'));
 
-		$plugin = new IMipPlugin($config, $mailer, $logger, $timeFactory, $l10nFactory, $urlGenerator, 'user123');
+		$plugin = new IMipPlugin($config, $mailer, $logger, $timeFactory, $l10nFactory, $urlGenerator, $defaults, 'user123');
 		$message = new Message();
 		$message->method = 'REQUEST';
 		$message->message = new VCalendar();
@@ -98,6 +105,7 @@ class IMipPluginTest extends TestCase {
 
 	public function testFailedDelivery() {
 		$mailMessage = $this->createMock(IMessage::class);
+		$mailMessage->method('setFrom')->willReturn($mailMessage);
 		$mailMessage->method('setReplyTo')->willReturn($mailMessage);
 		$mailMessage->method('setTo')->willReturn($mailMessage);
 		/** @var Mailer | \PHPUnit_Framework_MockObject_MockObject $mailer */
@@ -120,8 +128,10 @@ class IMipPluginTest extends TestCase {
 		$l10nFactory->method('get')->willReturn($l10n);
 		/** @var IURLGenerator | \PHPUnit_Framework_MockObject_MockObject $urlGenerator */
 		$urlGenerator = $this->createMock(IURLGenerator::class);
+		/** @var Defaults | \PHPUnit_Framework_MockObject_MockObject $defaults */
+		$defaults = $this->createMock(Defaults::class);
 
-		$plugin = new IMipPlugin($config, $mailer, $logger, $timeFactory, $l10nFactory, $urlGenerator, 'user123');
+		$plugin = new IMipPlugin($config, $mailer, $logger, $timeFactory, $l10nFactory, $urlGenerator, $defaults, 'user123');
 		$message = new Message();
 		$message->method = 'REQUEST';
 		$message->message = new VCalendar();
@@ -153,6 +163,7 @@ class IMipPluginTest extends TestCase {
 	 */
 	public function testNoMessageSendForPastEvents($veventParams, $expectsMail) {
 		$mailMessage = $this->createMock(IMessage::class);
+		$mailMessage->method('setFrom')->willReturn($mailMessage);
 		$mailMessage->method('setReplyTo')->willReturn($mailMessage);
 		$mailMessage->method('setTo')->willReturn($mailMessage);
 		/** @var Mailer | \PHPUnit_Framework_MockObject_MockObject $mailer */
@@ -179,8 +190,10 @@ class IMipPluginTest extends TestCase {
 		$l10nFactory->method('get')->willReturn($l10n);
 		/** @var IURLGenerator | \PHPUnit_Framework_MockObject_MockObject $urlGenerator */
 		$urlGenerator = $this->createMock(IURLGenerator::class);
+		/** @var Defaults | \PHPUnit_Framework_MockObject_MockObject $defaults */
+		$defaults = $this->createMock(Defaults::class);
 
-		$plugin = new IMipPlugin($config, $mailer, $logger, $timeFactory, $l10nFactory, $urlGenerator, 'user123');
+		$plugin = new IMipPlugin($config, $mailer, $logger, $timeFactory, $l10nFactory, $urlGenerator, $defaults, 'user123');
 		$message = new Message();
 		$message->method = 'REQUEST';
 		$message->message = new VCalendar();