diff --git a/Mailnag/common/config.py b/Mailnag/common/config.py
index fcbdf2d..f638537 100644
--- a/Mailnag/common/config.py
+++ b/Mailnag/common/config.py
@@ -26,6 +26,7 @@ mailnag_defaults = {
 		'poll_interval'		: '10',
 		'imap_idle_timeout'	: '10',
 		'autostart'			: '1',
+		'mark_imap_read'	: '1',
 		'connectivity_test'	: 'auto',
 		'enabled_plugins'	: 'dbusplugin, soundplugin, libnotifyplugin'
 	}
diff --git a/Mailnag/daemon/mailnagdaemon.py b/Mailnag/daemon/mailnagdaemon.py
index 07b759a..d452a3b 100644
--- a/Mailnag/daemon/mailnagdaemon.py
+++ b/Mailnag/daemon/mailnagdaemon.py
@@ -126,9 +126,22 @@ class MailnagDaemon(MailnagController):
 	
 	# Part of MailnagController interface
 	def mark_mail_as_read(self, mail_id):
-		# Note: ensure_not_disposed() is not really necessary here
-		# (the memorizer object is available in dispose()), 
-		# but better be consistent with other daemon methods.
+		mails = self._mailchecker._all_mails
+		found = False
+		for mail in mails:
+			if mail_id == mail.id:
+				found = True
+				break
+		if (not found) or (not bool(int(self._cfg.get('core', 'mark_imap_read')))):
+			self._ensure_not_disposed()
+			self._memorizer.set_to_seen(mail_id)
+			self._memorizer.save()
+			return
+		backend = mail.account._get_backend()
+		if type(backend).__name__ == 'IMAPMailboxBackend':
+			mailid = mail.strID
+			conn = backend._conn
+			status, res = conn.uid("STORE", mailid, "+FLAGS", "(\Seen)")
 		self._ensure_not_disposed()
 		self._memorizer.set_to_seen(mail_id)
 		self._memorizer.save()
diff --git a/Mailnag/plugins/markasreadplugin.py b/Mailnag/plugins/markasreadplugin.py
deleted file mode 100644
index 12d8fac..0000000
--- a/Mailnag/plugins/markasreadplugin.py
+++ /dev/null
@@ -1,76 +0,0 @@
-# Copyright 2013 - 2020 Andreas Angerer <andreas.angerer>
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-# MA 02110-1301, USA.
-#
-
-import os
-import dbus
-import threading
-from Mailnag.common.plugins import Plugin
-from Mailnag.common.i18n import _
-
-
-class MarkAsReadPlugin(Plugin):
-	def _mark_mail_as_read(self, mail_id):
-		mails = self.controller._mailchecker._all_mails
-		found = False
-		for mail in mails:
-			if mail_id == mail.id:
-				found = True
-				break
-		if not found:
-			self.controller._ensure_not_disposed()
-			self.controller._memorizer.set_to_seen(mail_id)
-			self.controller._memorizer.save()
-			return
-		backend = mail.account._get_backend()
-		mailid = mail.strID
-		conn = backend._conn
-		if type(backend).__name__ == 'IMAPMailboxBackend':
-			status, res = conn.uid("STORE", mailid, "+FLAGS", "(\Seen)")
-		self.controller._ensure_not_disposed()
-		self.controller._memorizer.set_to_seen(mail_id)
-		self.controller._memorizer.save()
-		
-
-	
-	def _mark_mail_as_read_bak(self, mail_id, mail):
-		self.controller._ensure_not_disposed()
-		self.controller._memorizer.set_to_seen(mail_id)
-		self.controller._memorizer.save()
-
-	def enable(self):
-		self.controller = self.get_mailnag_controller()
-		self.controller.mark_mail_as_read = self._mark_mail_as_read
-
-	
-	def disable(self):
-		self.controller.mark_mail_as_read = self._mark_mail_as_read_bak
-
-	
-	def get_manifest(self):
-		return (_("MarkAsReadPlugin"),
-				_("Marks mails as read on the IMAP server upon clicking them away."),
-				"1.0",
-				"Andreas Angerer")
-
-
-	def get_default_config(self):
-		return {}
-	
-	
-	def has_config_ui(self):
-		return False