diff --git a/lib/Service/NotificationMailer.php b/lib/Service/NotificationMailer.php
index 33f1ac2..8c35f38 100644
--- a/lib/Service/NotificationMailer.php
+++ b/lib/Service/NotificationMailer.php
@@ -9,12 +9,19 @@ use OCA\WorkflowDeckAutomation\Db\Workflow;
 use OCP\IL10N;
 use OCP\IURLGenerator;
 use OCP\IUser;
+use OCP\Mail\IEMailTemplate;
 use OCP\Mail\IMailer;
 use OCP\Util;
 use Psr\Log\LoggerInterface;
 use Throwable;
 
 class NotificationMailer {
+	/**
+	 * Descriptions are unbounded in Deck; keep the mail readable and well
+	 * clear of any MTA size limits.
+	 */
+	private const MAX_DESCRIPTION_LENGTH = 2000;
+
 	public function __construct(
 		private IMailer $mailer,
 		private IURLGenerator $urlGenerator,
@@ -48,6 +55,7 @@ class NotificationMailer {
 				'The card "%1$s" was moved because it is overdue (workflow "%2$s").',
 				[$card->getTitle(), $workflow->getTitle()],
 			));
+			$this->addCardDescription($template, $card);
 			$template->addBodyButton($this->l10n->t('Open card'), $cardLink);
 			$template->addFooter();
 
@@ -69,4 +77,33 @@ class NotificationMailer {
 			]);
 		}
 	}
+
+	/**
+	 * Appends the card's description, if it has one.
+	 *
+	 * Deck stores the description as Markdown. It is sent as-is rather than
+	 * rendered: pulling a Markdown parser in just for the mail would be a
+	 * lot of machinery, and unrendered Markdown still reads fine.
+	 */
+	private function addCardDescription(IEMailTemplate $template, Card $card): void {
+		$description = trim((string)$card->getDescription());
+		if ($description === '') {
+			return;
+		}
+
+		if (mb_strlen($description) > self::MAX_DESCRIPTION_LENGTH) {
+			$description = mb_substr($description, 0, self::MAX_DESCRIPTION_LENGTH) . ' […]';
+		}
+
+		$template->addBodyText($this->l10n->t('Card content:'));
+
+		// addBodyText() only runs htmlspecialchars() when it has to build the
+		// plain-text part itself. Passing both parts means escaping is on us
+		// -- and it has to be, because a card description is user input that
+		// would otherwise land unescaped in the HTML mail.
+		$template->addBodyText(
+			nl2br(htmlspecialchars($description, ENT_QUOTES, 'UTF-8'), false),
+			$description,
+		);
+	}
 }