diff --git a/dev/Common/Html.js b/dev/Common/Html.js
index 7af8e07d7..2a5b53b8a 100644
--- a/dev/Common/Html.js
+++ b/dev/Common/Html.js
@@ -236,7 +236,7 @@ export const
 					setAttribute('data-x-src-cid', value.slice(4));
 					result.foundCIDs.push(value.slice(4));
 				}
-				else if (/^https?:\/\//i.test(value) || '//' === value.slice(0, 2))
+				else if (/^(https?:)?\/\//i.test(value))
 				{
 					setAttribute('data-x-src', useProxy ? proxy(value) : value);
 					result.hasExternals = true;
diff --git a/dev/Common/Links.js b/dev/Common/Links.js
index cae3e49f6..9e896f2a2 100644
--- a/dev/Common/Links.js
+++ b/dev/Common/Links.js
@@ -47,14 +47,7 @@ export const
 		serverRequestRaw('Download', download, customSpecSuffix),
 
 	proxy = url =>
-		SERVER_PREFIX + '/ProxyExternal/' + btoa(url).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, ''),
-/*
-		return './?/ProxyExternal/'.Utils::EncodeKeyValuesQ(array(
-			'Rnd' => \md5(\microtime(true)),
-			'Token' => Utils::GetConnectionToken(),
-			'Url' => $sUrl
-		)).'/';
-*/
+		SERVER_PREFIX + '/ProxyExternal/' + btoa(url.replace(/ /g, '%20')).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, ''),
 
 	/**
 	 * @param {string} type
diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php b/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php
index b4cccedcd..074632756 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php
@@ -344,28 +344,19 @@ class ServiceActions
 	public function ServiceProxyExternal() : string
 	{
 		$sData = empty($this->aPaths[1]) ? '' : $this->aPaths[1];
-		if (!empty($sData) && $this->Config()->Get('labs', 'use_local_proxy_for_external_images', false))
-		{
+		if ($sData && $this->Config()->Get('labs', 'use_local_proxy_for_external_images', false)) {
 			$this->oActions->verifyCacheByKey($sData);
-			$aData = Utils::DecodeKeyValuesQ($sData);
-			if (!\is_array($aData) && $this->oActions->GetAccount()) {
-				$aData = [
-//					'Rnd' => md5(\microtime(true)),
-					'Token' => Utils::GetConnectionToken(),
-					'Url' => \MailSo\Base\Utils::UrlSafeBase64Decode($sData)
-				];
-			}
-			if (\is_array($aData) && !empty($aData['Token']) && !empty($aData['Url']) && $aData['Token'] === Utils::GetConnectionToken())
-			{
-				\header('X-Content-Location: '.$aData['Url']);
+			$sUrl = \MailSo\Base\Utils::UrlSafeBase64Decode($sData);
+			if (!empty($sUrl)) {
+				\header('X-Content-Location: '.$sUrl);
 				$tmp = \tmpfile();
 				$HTTP = \SnappyMail\HTTP\Request::factory();
 				$HTTP->max_redirects = 2;
 				$HTTP->streamBodyTo($tmp);
-				$oResponse = $HTTP->doRequest('GET', $aData['Url']);
+				$oResponse = $HTTP->doRequest('GET', $sUrl);
 				if ($oResponse && 200 === $oResponse->status
 					&& \str_starts_with($oResponse->getHeader('content-type'), 'image/')
-				) {
+				) try {
 					$this->oActions->cacheByKey($sData);
 					\header('Content-Type: ' . $oResponse->getHeader('content-type'));
 					\header('Cache-Control: public');
@@ -374,6 +365,10 @@ class ServiceActions
 					\rewind($tmp);
 					\fpassthru($tmp);
 					exit;
+				} catch (\Throwable $e) {
+					$msg = \get_class($HTTP) . ': ' . $e->getMessage();
+					\SnappyMail\Log::error('Proxy', $msg);
+//					\error_log(\get_class($HTTP) . ': ' . $e->getMessage());
 				}
 			}
 		}
diff --git a/snappymail/v/0.0.0/app/libraries/snappymail/http/response.php b/snappymail/v/0.0.0/app/libraries/snappymail/http/response.php
index aba9be140..3593aa41d 100644
--- a/snappymail/v/0.0.0/app/libraries/snappymail/http/response.php
+++ b/snappymail/v/0.0.0/app/libraries/snappymail/http/response.php
@@ -76,9 +76,9 @@ class Response
 	{
 		if ($location = $this->getHeader('location')) {
 			$uri = \is_array($location) ? $location[0] : $location;
-			if (!\preg_match('#^[a-z][a-z0-9\\+\\.\\-]+://[^/]+#i', $uri)) {
+			if (!\preg_match('#^([a-z][a-z0-9\\+\\.\\-]+:)?//[^/]+#i', $uri)) {
 				// no host
-				\preg_match('#^([a-z][a-z0-9\\+\\.\\-]+://[^/]+)(/[^\\?\\#]*)#i', $this->final_uri, $match);
+				\preg_match('#^((?:[a-z][a-z0-9\\+\\.\\-]+:)?//[^/]+)(/[^\\?\\#]*)#i', $this->final_uri, $match);
 				if ('/' === $uri[0]) {
 					// absolute path
 					$uri = $match[1] . $uri;
@@ -88,6 +88,9 @@ class Response
 					$uri  = $match[1] . \substr($match[2], 0, $rpos+1) . $uri;
 				}
 			}
+			if ('//' === \substr($uri, 0, 2)) {
+				$uri = \explode(':', $this->request_uri)[0] . ':' . $uri;
+			}
 			return $uri;
 		}
 		return null;