diff --git a/frappe/core/doctype/communication/communication.py b/frappe/core/doctype/communication/communication.py
index f89f0d8765..759557ae4c 100644
--- a/frappe/core/doctype/communication/communication.py
+++ b/frappe/core/doctype/communication/communication.py
@@ -18,6 +18,7 @@ from urllib.parse import unquote
 from frappe.utils.user import is_system_user
 from frappe.contacts.doctype.contact.contact import get_contact_name
 from frappe.automation.doctype.assignment_rule.assignment_rule import apply as apply_assignment_rule
+from parse import compile
 
 exclude_from_linked_with = True
 
@@ -114,6 +115,43 @@ class Communication(Document, CommunicationEmailMixin):
 				frappe.publish_realtime('new_message', self.as_dict(),
 					user=self.reference_name, after_commit=True)
 
+	def set_signature_in_email_content(self):
+		"""Set sender's User.email_signature or default outgoing's EmailAccount.signature to the email
+		"""
+		if not self.content:
+			return
+
+		quill_parser = compile('<div class="ql-editor read-mode">{}</div>')
+		email_body = quill_parser.parse(self.content)
+
+		if not email_body:
+			return
+
+		email_body = email_body[0]
+
+		user_email_signature = frappe.db.get_value(
+			"User",
+			self.sender,
+			"email_signature",
+		) if self.sender else None
+
+		signature = user_email_signature or frappe.db.get_value(
+			"Email Account",
+			{"default_outgoing": 1, "add_signature": 1},
+			"signature",
+		)
+
+		if not signature:
+			return
+
+		_signature = quill_parser.parse(signature)[0] if "ql-editor" in signature else None
+
+		if (_signature or signature) not in self.content:
+			self.content = f'{self.content}</p><br><p class="signature">{signature}'
+
+	def before_save(self):
+		self.set_signature_in_email_content()
+
 	def on_update(self):
 		# add to _comment property of the doctype, so it shows up in
 		# comments count for the list view
diff --git a/frappe/email/email_body.py b/frappe/email/email_body.py
index c25e996bd3..0f45e42aac 100755
--- a/frappe/email/email_body.py
+++ b/frappe/email/email_body.py
@@ -259,17 +259,12 @@ def get_formatted_html(subject, message, footer=None, print_html=None,
 
 	email_account = email_account or EmailAccount.find_outgoing(match_by_email=sender)
 
-	signature = None
-	if "<!-- signature-included -->" not in message:
-		signature = get_signature(email_account)
-
 	rendered_email = frappe.get_template("templates/emails/standard.html").render({
 		"brand_logo": get_brand_logo(email_account) if with_container or header else None,
 		"with_container": with_container,
 		"site_url": get_url(),
 		"header": get_header(header),
 		"content": message,
-		"signature": signature,
 		"footer": get_footer(email_account, footer),
 		"title": subject,
 		"print_html": print_html,
@@ -281,8 +276,7 @@ def get_formatted_html(subject, message, footer=None, print_html=None,
 	if unsubscribe_link:
 		html = html.replace("<!--unsubscribe link here-->", unsubscribe_link.html)
 
-	html = inline_style_in_html(html)
-	return html
+	return inline_style_in_html(html)
 
 @frappe.whitelist()
 def get_email_html(template, args, subject, header=None, with_container=False):
diff --git a/frappe/public/js/frappe/views/communication.js b/frappe/public/js/frappe/views/communication.js
index 4cdc75e8cd..1d219a7044 100755
--- a/frappe/public/js/frappe/views/communication.js
+++ b/frappe/public/js/frappe/views/communication.js
@@ -750,7 +750,7 @@ frappe.views.CommunicationComposer = class {
 			signature = signature.replace(/\n/g, "<br>");
 		}
 
-		return "<br><!-- signature-included -->" + signature;
+		return "<br>" + signature;
 	}
 
 	get_earlier_reply() {
diff --git a/frappe/templates/emails/standard.html b/frappe/templates/emails/standard.html
index 4a47c9cf90..2a2093e1e9 100644
--- a/frappe/templates/emails/standard.html
+++ b/frappe/templates/emails/standard.html
@@ -37,7 +37,6 @@
 								<tr>
 									<td valign="top">
 										<p>{{ content }}</p>
-										<p class="signature">{{ signature }}</p>
 									</td>
 								</tr>
 							</table>
diff --git a/requirements.txt b/requirements.txt
index ba4a1a598b..c77ab1d424 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,6 +29,7 @@ maxminddb-geolite2==2018.703
 num2words~=0.5.10
 oauthlib~=3.1.0
 openpyxl~=3.0.7
+parse~=1.19.0
 passlib~=1.7.4
 paytmchecksum~=1.7.0
 pdfkit~=0.6.1