diff --git a/frappe/__init__.py b/frappe/__init__.py
index b17bc1c2e4..575de13595 100644
--- a/frappe/__init__.py
+++ b/frappe/__init__.py
@@ -13,7 +13,7 @@ import os, sys, importlib, inspect, json
 from .exceptions import *
 from .utils.jinja import get_jenv, get_template, render_template
 
-__version__ = '7.2.10'
+__version__ = '7.2.11'
 __title__ = "Frappe Framework"
 
 local = Local()
diff --git a/frappe/auth.py b/frappe/auth.py
index fcaa9da0da..24c442980a 100644
--- a/frappe/auth.py
+++ b/frappe/auth.py
@@ -255,7 +255,7 @@ class LoginManager:
 		self.run_trigger('on_logout')
 
 		if user == frappe.session.user:
-			delete_session(frappe.session.sid)
+			delete_session(frappe.session.sid, user=user, reason="User Manually Logged Out")
 			self.clear_cookies()
 		else:
 			clear_sessions(user)
diff --git a/frappe/commands/utils.py b/frappe/commands/utils.py
index 7c74e41834..67fef989ad 100644
--- a/frappe/commands/utils.py
+++ b/frappe/commands/utils.py
@@ -52,15 +52,16 @@ def clear_website_cache(context):
 			frappe.destroy()
 
 @click.command('destroy-all-sessions')
+@click.option('--reason')
 @pass_context
-def destroy_all_sessions(context):
+def destroy_all_sessions(context, reason=None):
 	"Clear sessions of all users (logs them out)"
 	import frappe.sessions
 	for site in context.sites:
 		try:
 			frappe.init(site=site)
 			frappe.connect()
-			frappe.sessions.clear_all_sessions()
+			frappe.sessions.clear_all_sessions(reason)
 			frappe.db.commit()
 		finally:
 			frappe.destroy()
diff --git a/frappe/core/doctype/communication/email.py b/frappe/core/doctype/communication/email.py
index eb4bf2a9c2..2fcaa42b52 100755
--- a/frappe/core/doctype/communication/email.py
+++ b/frappe/core/doctype/communication/email.py
@@ -334,12 +334,13 @@ def add_attachments(name, attachments):
 
 	# loop through attachments
 	for a in attachments:
-		attach = frappe.db.get_value("File", {"name":a},
-			["file_name", "file_url", "is_private"], as_dict=1)
+		if isinstance(a, basestring):
+			attach = frappe.db.get_value("File", {"name":a},
+				["file_name", "file_url", "is_private"], as_dict=1)
 
-		# save attachments to new doc
-		save_url(attach.file_url, attach.file_name, "Communication", name,
-			"Home/Attachments", attach.is_private)
+			# save attachments to new doc
+			save_url(attach.file_url, attach.file_name, "Communication", name,
+				"Home/Attachments", attach.is_private)
 
 def filter_email_list(doc, email_list, exclude, is_cc=False):
 	# temp variables
diff --git a/frappe/core/doctype/communication/feed.py b/frappe/core/doctype/communication/feed.py
index b9054f7218..b49bd1163e 100644
--- a/frappe/core/doctype/communication/feed.py
+++ b/frappe/core/doctype/communication/feed.py
@@ -58,6 +58,15 @@ def login_feed(login_manager):
 		"full_name": get_fullname(login_manager.user)
 	})
 
+def logout_feed(user, reason):
+	if not user:
+		return
+
+	add_info_comment(**{
+		"subject": _("{0} logged out: <b>{1}</b>").format(get_fullname(user), reason),
+		"full_name": get_fullname(user),
+	})
+
 def get_feed_match_conditions(user=None, force=True):
 	if not user: user = frappe.session.user
 
diff --git a/frappe/sessions.py b/frappe/sessions.py
index 56c075ee17..cdfa07b806 100644
--- a/frappe/sessions.py
+++ b/frappe/sessions.py
@@ -61,7 +61,7 @@ def clear_sessions(user=None, keep_current=False, device=None):
 	:param device: delete sessions of this device (default: desktop)
 	'''
 	for sid in get_sessions_to_clear(user, keep_current, device):
-		delete_session(sid)
+		delete_session(sid, reason="Logged In From Another Session")
 
 def get_sessions_to_clear(user=None, keep_current=False, device=None):
 	'''Returns sessions of the current user. Called at login / logout
@@ -85,23 +85,30 @@ def get_sessions_to_clear(user=None, keep_current=False, device=None):
 	if keep_current:
 		condition = ' and sid != "{0}"'.format(frappe.db.escape(frappe.session.sid))
 
-
 	return frappe.db.sql_list("""select sid from tabSessions
 		where user=%s and device=%s {condition}
 		order by lastupdate desc limit {limit}, 100""".format(condition=condition, limit=limit),
 		(user, device))
 
-def delete_session(sid=None, user=None):
+def delete_session(sid=None, user=None, reason="Session Expired"):
+	from frappe.core.doctype.communication.feed import logout_feed
+
 	frappe.cache().hdel("session", sid)
 	frappe.cache().hdel("last_db_session_update", sid)
+	if sid and not user:
+		user_details = frappe.db.sql("""select user from tabSessions where sid=%s""", sid, as_dict=True)
+		if user_details: user = user_details[0].get("user")
+
+	logout_feed(user, reason)
 	frappe.db.sql("""delete from tabSessions where sid=%s""", sid)
 	frappe.db.commit()
 
-def clear_all_sessions():
+def clear_all_sessions(reason=None):
 	"""This effectively logs out all users"""
 	frappe.only_for("Administrator")
+	if not reason: reason = "Deleted All Active Session"
 	for sid in frappe.db.sql_list("select sid from `tabSessions`"):
-		delete_session(sid)
+		delete_session(sid, reason=reason)
 
 def get_expired_sessions():
 	'''Returns list of expired sessions'''
@@ -113,11 +120,10 @@ def get_expired_sessions():
 
 	return expired
 
-
 def clear_expired_sessions():
 	"""This function is meant to be called from scheduler"""
 	for sid in get_expired_sessions():
-		delete_session(sid)
+		delete_session(sid, reason="Session Expired")
 
 def get():
 	"""get session boot info"""
@@ -335,7 +341,7 @@ class Session:
 		return (cint(parts[0]) * 3600) + (cint(parts[1]) * 60) + cint(parts[2])
 
 	def delete_session(self):
-		delete_session(self.sid)
+		delete_session(self.sid, reason="Session Expired")
 
 	def start_as_guest(self):
 		"""all guests share the same 'Guest' session"""