diff --git a/.docker/release/files/usr/local/include/application.ini b/.docker/release/files/usr/local/include/application.ini
index d7695abb9..ed077dbbc 100644
--- a/.docker/release/files/usr/local/include/application.ini
+++ b/.docker/release/files/usr/local/include/application.ini
@@ -292,5 +292,5 @@ dev_email = ""
 dev_password = ""
 
 [version]
-current = "2.7.2"
+current = "2.7.3"
 saved = "Mon, 23 Aug 2021 07:55:13 +0000"
diff --git a/README.md b/README.md
index 6daddb5a4..93845af62 100644
--- a/README.md
+++ b/README.md
@@ -129,23 +129,23 @@ RainLoop 1.15 vs SnappyMail
 
 |js/*           	|RainLoop 	|Snappy   	|
 |---------------	|--------:	|--------:	|
-|admin.js        	|2.158.025	|   86.143	|
-|app.js          	|4.215.733	|  435.037	|
+|admin.js        	|2.158.025	|   86.179	|
+|app.js          	|4.215.733	|  435.073	|
 |boot.js         	|  672.433	|    2.707	|
-|libs.js         	|  647.679	|  213.208	|
+|libs.js         	|  647.679	|  211.161	|
 |polyfills.js    	|  325.908	|        0	|
 |serviceworker.js	|        0	|      285	|
-|TOTAL           	|8.019.778	|  737.380	|
+|TOTAL           	|8.019.778	|  735.405	|
 
 |js/min/*       	|RainLoop 	|Snappy   	|RL gzip	|SM gzip	|RL brotli	|SM brotli	|
 |---------------	|--------:	|--------:	|------:	|------:	|--------:	|--------:	|
-|admin.min.js    	|  255.514	|   43.930	| 73.899	| 13.591	| 60.674  	| 12.162	|
-|app.min.js      	|  516.000	|  222.420	|140.430	| 66.268	|110.657  	| 56.207	|
+|admin.min.js    	|  255.514	|   43.957	| 73.899	| 13.590	| 60.674  	| 12.174	|
+|app.min.js      	|  516.000	|  222.447	|140.430	| 66.271	|110.657  	| 56.274	|
 |boot.min.js     	|   66.456	|    1.621	| 22.553	|    983	| 20.043  	|    805	|
-|libs.min.js     	|  574.626	|  102.959	|177.280	| 37.514	|151.855  	| 33.617	|
+|libs.min.js     	|  574.626	|  101.006	|177.280	| 36.780	|151.855  	| 32.955	|
 |polyfills.min.js	|   32.608	|        0	| 11.315	|      0	| 10.072  	|      0	|
-|TOTAL           	|1.445.204	|  370.930	|425.477	|118.356	|353.301  	|102.791	|
-|TOTAL (no admin)	|1.189.690	|  327.000	|351.061	|104.765	|292.627  	| 90.629	|
+|TOTAL           	|1.445.204	|  369.031	|425.477	|117.624	|353.301  	|102.208	|
+|TOTAL (no admin)	|1.189.690	|  325.074	|351.061	|104.034	|292.627  	| 90.034	|
 
 For a user its around 68% smaller and faster than traditional RainLoop.
 
diff --git a/integrations/nextcloud/snappymail/VERSION b/integrations/nextcloud/snappymail/VERSION
index fbafd6b60..e2bdf6e45 100755
--- a/integrations/nextcloud/snappymail/VERSION
+++ b/integrations/nextcloud/snappymail/VERSION
@@ -1 +1 @@
-2.7.2
\ No newline at end of file
+2.7.3
\ No newline at end of file
diff --git a/integrations/nextcloud/snappymail/appinfo/info.xml b/integrations/nextcloud/snappymail/appinfo/info.xml
index 9dfbe71ee..0597048c8 100644
--- a/integrations/nextcloud/snappymail/appinfo/info.xml
+++ b/integrations/nextcloud/snappymail/appinfo/info.xml
@@ -4,7 +4,7 @@
 	<name>SnappyMail</name>
 	<summary>SnappyMail Webmail</summary>
 	<description>Simple, modern and fast web-based email client. After enabling in Nextcloud, go to Nextcloud admin panel, "Additionnal settings" and you will see a "SnappyMail webmail" section. There, click on the link to go to the SnappyMail admin panel. The default user/password is admin/12345. This version is based on SnappyMail 2.6.0 (2021-07).</description>
-	<version>2.7.2</version>
+	<version>2.7.3</version>
 	<licence>agpl</licence>
 	<author>SnappyMail Team, Nextgen-Networks, Tab Fitts, Nathan Kinkade, Pierre-Alain Bandinelli</author>
   <namespace>SnappyMail</namespace>
diff --git a/package.json b/package.json
index ba1c834b6..762ed160d 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "title": "SnappyMail",
   "description": "Simple, modern & fast web-based email client",
   "private": true,
-  "version": "2.7.2",
+  "version": "2.7.3",
   "homepage": "https://snappymail.eu",
   "author": {
     "name": "DJ Maze",
diff --git a/snappymail/v/0.0.0/app/templates/Views/User/PopupsCompose.html b/snappymail/v/0.0.0/app/templates/Views/User/PopupsCompose.html
index ec589784e..c959a19bf 100644
--- a/snappymail/v/0.0.0/app/templates/Views/User/PopupsCompose.html
+++ b/snappymail/v/0.0.0/app/templates/Views/User/PopupsCompose.html
@@ -68,11 +68,9 @@
 									</li>
 								</ul>
 							</div>
-							<div class="btn-group pull-right">&nbsp;</div>
 							<div class="btn-group pull-right">
 								<a class="btn fontastic" data-bind="visible: allowContacts, command: contactsCommand" data-i18n="[title]GLOBAL/CONTACTS">📇</a>
 							</div>
-							<div class="btn-group pull-right">&nbsp;</div>
 						</div>
 						<span class="pull-right">
 							<span class="g-ui-link" data-i18n="GLOBAL/CC"
diff --git a/vendors/knockout/build/output/knockout-latest.debug.js b/vendors/knockout/build/output/knockout-latest.debug.js
index 707d83ca9..03879b0c6 100644
--- a/vendors/knockout/build/output/knockout-latest.debug.js
+++ b/vendors/knockout/build/output/knockout-latest.debug.js
@@ -18,11 +18,11 @@ ko.exportSymbol = (koPath, object) => {
 
     // In the future, "ko" may become distinct from "koExports" (so that non-exported objects are not reachable)
     // At that point, "target" would be set to: (typeof koExports !== "undefined" ? koExports : ko)
-    var target = ko;
+    var target = ko, i = 0, l = tokens.length - 1;
 
-    for (var i = 0; i < tokens.length - 1; i++)
+    for (; i < l; i++)
         target = target[tokens[i]];
-    target[tokens[tokens.length - 1]] = object;
+    target[tokens[l]] = object;
 };
 ko.exportProperty = (owner, publicName, object) => owner[publicName] = object;
 ko.exportSymbol('version', "3.5.1-sm");
@@ -105,7 +105,7 @@ ko.utils = {
                 string.toString().replace(/^[\s\xa0]+|[\s\xa0]+$/g, ''),
 
     domNodeIsAttachedToDocument: node =>
-		node.ownerDocument.documentElement.contains(node.nodeType !== 1 ? node.parentNode : node),
+        node.ownerDocument.documentElement.contains(node.nodeType !== 1 ? node.parentNode : node),
 
     triggerEvent: (element, eventType) => {
         if (!(element && element.nodeType))
@@ -366,7 +366,6 @@ class koSubscription
         this._node = null;
         this._domNodeDisposalCallback = null;
         ko.exportProperty(this, 'dispose', this.dispose);
-        ko.exportProperty(this, 'disposeWhenNodeIsRemoved', this.disposeWhenNodeIsRemoved);
     }
 
     dispose() {
@@ -2350,17 +2349,17 @@ ko.expressionRewriting = (() => {
         clearCachedDefinition: componentName =>
             delete loadedDefinitionsCache[componentName],
 
-		register: (componentName, config) => {
-			if (!config) {
-				throw new Error('Invalid configuration for ' + componentName);
-			}
+        register: (componentName, config) => {
+            if (!config) {
+                throw new Error('Invalid configuration for ' + componentName);
+            }
 
-			if (defaultConfigRegistry[componentName]) {
-				throw new Error('Component ' + componentName + ' is already registered');
-			}
+            if (defaultConfigRegistry[componentName]) {
+                throw new Error('Component ' + componentName + ' is already registered');
+            }
 
-			defaultConfigRegistry[componentName] = config;
-		}
+            defaultConfigRegistry[componentName] = config;
+        }
     };
 
     // The default loader is responsible for two things:
@@ -2376,49 +2375,49 @@ ko.expressionRewriting = (() => {
     var defaultConfigRegistry = Object.create(null);
     var createViewModelKey = 'createViewModel';
 
-	// Takes a config object of the form { template: ..., viewModel: ... }, and asynchronously convert it
-	// into the standard component definition format:
-	//    { template: <ArrayOfDomNodes>, createViewModel: function(params, componentInfo) { ... } }.
-	// Since both template and viewModel may need to be resolved asynchronously, both tasks are performed
-	// in parallel, and the results joined when both are ready. We don't depend on any promises infrastructure,
-	// so this is implemented manually below.
+    // Takes a config object of the form { template: ..., viewModel: ... }, and asynchronously convert it
+    // into the standard component definition format:
+    //    { template: <ArrayOfDomNodes>, createViewModel: function(params, componentInfo) { ... } }.
+    // Since both template and viewModel may need to be resolved asynchronously, both tasks are performed
+    // in parallel, and the results joined when both are ready. We don't depend on any promises infrastructure,
+    // so this is implemented manually below.
     function loadComponent(componentName, callback) {
-		var result = {},
-			config = defaultConfigRegistry[componentName] || {},
-			templateConfig = config['template'],
-			viewModelConfig = config['viewModel'];
+        var result = {},
+            config = defaultConfigRegistry[componentName] || {},
+            templateConfig = config['template'],
+            viewModelConfig = config['viewModel'];
 
-		if (templateConfig) {
-			if (!templateConfig['element']) {
-				throwError(componentName, 'Unknown template value: ' + templateConfig);
-			}
-			// Element ID - find it, then copy its child nodes
-			var element = templateConfig['element'];
-			var elemInstance = document.getElementById(element);
-			if (!elemInstance) {
-				throwError(componentName, 'Cannot find element with ID ' + element);
-			}
-			if (!elemInstance.matches('TEMPLATE')) {
-				throwError(componentName, 'Template Source Element not a <template>');
-			}
-			// For browsers with proper <template> element support (i.e., where the .content property
-			// gives a document fragment), use that document fragment.
-			result['template'] = ko.utils.cloneNodes(elemInstance.content.childNodes);
-		}
+        if (templateConfig) {
+            if (!templateConfig['element']) {
+                throwError(componentName, 'Unknown template value: ' + templateConfig);
+            }
+            // Element ID - find it, then copy its child nodes
+            var element = templateConfig['element'];
+            var elemInstance = document.getElementById(element);
+            if (!elemInstance) {
+                throwError(componentName, 'Cannot find element with ID ' + element);
+            }
+            if (!elemInstance.matches('TEMPLATE')) {
+                throwError(componentName, 'Template Source Element not a <template>');
+            }
+            // For browsers with proper <template> element support (i.e., where the .content property
+            // gives a document fragment), use that document fragment.
+            result['template'] = ko.utils.cloneNodes(elemInstance.content.childNodes);
+        }
 
-		if (viewModelConfig) {
-			if (typeof viewModelConfig[createViewModelKey] !== 'function') {
-				throwError(componentName, 'Unknown viewModel value: ' + viewModelConfig);
-			}
-			// Already a factory function - use it as-is
-			result[createViewModelKey] = viewModelConfig[createViewModelKey];
-		}
+        if (viewModelConfig) {
+            if (typeof viewModelConfig[createViewModelKey] !== 'function') {
+                throwError(componentName, 'Unknown viewModel value: ' + viewModelConfig);
+            }
+            // Already a factory function - use it as-is
+            result[createViewModelKey] = viewModelConfig[createViewModelKey];
+        }
 
-		if (result['template'] && result[createViewModelKey]) {
-			callback(result);
-		} else {
-			callback(null);
-		}
+        if (result['template'] && result[createViewModelKey]) {
+            callback(result);
+        } else {
+            callback(null);
+        }
     }
 
     function throwError(componentName, message) {
diff --git a/vendors/knockout/build/output/knockout-latest.js b/vendors/knockout/build/output/knockout-latest.js
index 30cc1de67..02cfa0601 100644
--- a/vendors/knockout/build/output/knockout-latest.js
+++ b/vendors/knockout/build/output/knockout-latest.js
@@ -4,73 +4,73 @@
  * License: MIT (http://www.opensource.org/licenses/mit-license.php)
  */
 
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