From c0ed491f7ac2be8e90759b08db3bd54342d53ed2 Mon Sep 17 00:00:00 2001
From: the-djmaze <>
Date: Tue, 6 Aug 2024 12:25:39 +0200
Subject: [PATCH] Bugfix: Division by zero #1694

---
 snappymail/v/0.0.0/app/libraries/MailSo/Mail/Message.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/snappymail/v/0.0.0/app/libraries/MailSo/Mail/Message.php b/snappymail/v/0.0.0/app/libraries/MailSo/Mail/Message.php
index 8f6668704..fa8c9cf2e 100644
--- a/snappymail/v/0.0.0/app/libraries/MailSo/Mail/Message.php
+++ b/snappymail/v/0.0.0/app/libraries/MailSo/Mail/Message.php
@@ -253,8 +253,10 @@ class Message implements \JsonSerializable
 				else if (\preg_match('@([\\d\\.]+)/([\\d\\.]+)@', $spam, $value)
 				  || \preg_match('@([\\d\\.]+)/([\\d\\.]+)@', $oHeaders->ValueByName(MimeHeader::X_SPAM_INFO), $value)
 				) {
-					$oMessage->sSpamResult = "{$value[1]} / {$value[2]}";
-					$oMessage->setSpamScore(100 * \floatval($value[1]) / \floatval($value[2]));
+					if ($threshold = \floatval($value[2])) {
+						$oMessage->setSpamScore(100 * \floatval($value[1]) / $threshold);
+						$oMessage->sSpamResult = "{$value[1]} / {$value[2]}";
+					}
 				}
 
 				$oMessage->bIsSpam = 'Yes' === \substr($spam, 0, 3)