diff --git a/frappe/desk/form/load.py b/frappe/desk/form/load.py
index 7dec249be1..00f29b6ffe 100644
--- a/frappe/desk/form/load.py
+++ b/frappe/desk/form/load.py
@@ -165,7 +165,7 @@ def get_communication_data(doctype, name, start=0, limit=20, after=None, fields=
 	'''Returns list of communications for a given document'''
 	if not fields:
 		fields = '''`name`, `communication_type`,`communication_medium`, `comment_type`,
-			`communication_date`, `content`, `sender`, `sender_full_name`,
+			`communication_date`, `content`, `sender`, `sender_full_name`, `cc`, `bcc`,
 			`creation`, `subject`, `delivery_status`, `_liked_by`,
 			`timeline_doctype`, `timeline_name`, `reference_doctype`, `reference_name`,
 			`link_doctype`, `link_name`, `read_by_recipient`, `rating`, 'Communication' AS `doctype`'''
diff --git a/frappe/public/js/frappe/form/footer/timeline.js b/frappe/public/js/frappe/form/footer/timeline.js
index 4d8585b045..70ac4e4241 100644
--- a/frappe/public/js/frappe/form/footer/timeline.js
+++ b/frappe/public/js/frappe/form/footer/timeline.js
@@ -289,28 +289,38 @@ frappe.ui.form.Timeline = class Timeline {
 	}
 
 	add_reply_btn_event($timeline_item, c) {
-		var me = this;
-		$timeline_item.find(".reply-link").on("click", function() {
-			var name = $(this).attr("data-name");
+		$timeline_item.on('click', '.reply-link, .reply-link-all', (e) => {
 			var last_email = null;
 
-			// find the email tor reply to
-			me.get_communications().forEach(function(c) {
-				if(c.name==name) {
+			const $target = $(e.currentTarget);
+			const name = $target.data().name;
+
+			// find the email to reply to
+			this.get_communications().forEach(function(c) {
+				if(c.name == name) {
 					last_email = c;
 					return false;
 				}
 			});
 
-			// make the composer
-			new frappe.views.CommunicationComposer({
-				doc: me.frm.doc,
+			const opts = {
+				doc: this.frm.doc,
 				txt: "",
 				title: __('Reply'),
-				frm: me.frm,
-				last_email: last_email,
+				frm: this.frm,
+				last_email,
 				is_a_reply: true
-			});
+			};
+
+			if ($target.is('.reply-link-all')) {
+				if (last_email) {
+					opts.cc = last_email.cc;
+					opts.bcc = last_email.bcc;
+				}
+			}
+
+			// make the composer
+			new frappe.views.CommunicationComposer(opts);
 		});
 	}
 
@@ -834,4 +844,4 @@ $.extend(frappe.timeline, {
 
 		return index;
 	}
-})
\ No newline at end of file
+});
diff --git a/frappe/public/js/frappe/form/footer/timeline_item.html b/frappe/public/js/frappe/form/footer/timeline_item.html
index c2965dd98c..d5f717f977 100755
--- a/frappe/public/js/frappe/form/footer/timeline_item.html
+++ b/frappe/public/js/frappe/form/footer/timeline_item.html
@@ -95,6 +95,8 @@
 								&& data.sender !== frappe.session.user_email) { %}
 							<a class="text-muted reply-link pull-right timeline-content-show"
 								data-name="{%= data.name %}" title="{%= __("Reply") %}">{%= __("Reply") %}</a>
+							<a class="text-muted reply-link-all pull-right timeline-content-show"
+								data-name="{%= data.name %}" title="{%= __("Reply All") %}">{%= __("Reply All") %}</a>
 							{% } %}
 						{% } %}
 					<span class="text-muted commented-on hidden-xs {% if (data.futur_date) { %}timeline-futur{% } %}">
diff --git a/frappe/public/less/form.less b/frappe/public/less/form.less
index 0ad6f54adc..d6ef64d5bc 100644
--- a/frappe/public/less/form.less
+++ b/frappe/public/less/form.less
@@ -579,13 +579,15 @@ h6.uppercase, .h6.uppercase {
 	.timeline-indicator();
 }
 
-.timeline-item.notification-content.dark::before {
-	background-color: @text-color;
+.timeline-item {
+	.reply-link, .reply-link-all {
+		margin-left: 15px;
+		font-size: 12px;
+	}
 }
 
-.timeline-item .reply-link {
-	margin-left: 15px;
-	font-size: 12px;
+.timeline-item.notification-content.dark::before {
+	background-color: @text-color;
 }
 
 .timeline-head {
diff --git a/frappe/public/less/mobile.less b/frappe/public/less/mobile.less
index 63996f31ad..13b124feec 100644
--- a/frappe/public/less/mobile.less
+++ b/frappe/public/less/mobile.less
@@ -444,7 +444,7 @@ body {
 					.links-active {
 						padding-right: 10px;
 					}
-					.reply-link {
+					.reply-link, .reply-link-all {
 						margin-left: 0;
 					}
 					.asset-details {