diff -up evolution-ews-3.12.11/src/calendar/e-cal-backend-ews.c.read-user-partstat evolution-ews-3.12.11/src/calendar/e-cal-backend-ews.c
--- evolution-ews-3.12.11/src/calendar/e-cal-backend-ews.c.read-user-partstat	2015-01-05 17:44:34.000000000 +0100
+++ evolution-ews-3.12.11/src/calendar/e-cal-backend-ews.c	2016-03-31 17:51:29.593214663 +0200
@@ -103,6 +103,7 @@ struct _ECalBackendEwsPrivate {
 	" calendar:UID" \
 	" calendar:Resources" \
 	" calendar:ModifiedOccurrences" \
+	" calendar:MyResponseType" \
 	" calendar:RequiredAttendees" \
 	" calendar:OptionalAttendees"
 
@@ -2891,6 +2892,32 @@ get_timezone (ETimezoneCache *timezone_c
 	return zone;
 }
 
+static icalparameter *
+cal_backend_ews_responsetype_to_partstat (const gchar *responsetype)
+{
+	icalparameter *param = NULL;
+
+	g_return_val_if_fail (responsetype != NULL, NULL);
+
+	if (g_ascii_strcasecmp (responsetype, "Organizer") == 0)
+		param = icalparameter_new_partstat (ICAL_PARTSTAT_ACCEPTED);
+	else if (g_ascii_strcasecmp (responsetype, "Tentative") == 0)
+		param = icalparameter_new_partstat (ICAL_PARTSTAT_TENTATIVE);
+	else if (g_ascii_strcasecmp (responsetype, "Accept") == 0)
+		param = icalparameter_new_partstat (ICAL_PARTSTAT_ACCEPTED);
+	else if (g_ascii_strcasecmp (responsetype, "Decline") == 0)
+		param = icalparameter_new_partstat (ICAL_PARTSTAT_DECLINED);
+	else if (g_ascii_strcasecmp (responsetype, "NoResponseReceived") == 0)
+		param = icalparameter_new_partstat (ICAL_PARTSTAT_NEEDSACTION);
+	else if (g_ascii_strcasecmp (responsetype, "Unknown") == 0)
+		param = icalparameter_new_partstat (ICAL_PARTSTAT_NONE);
+
+	if (!param)
+		param = icalparameter_new_partstat (ICAL_PARTSTAT_NONE);
+
+	return param;
+}
+
 static void
 add_item_to_cache (ECalBackendEws *cbews,
                    EEwsItem *item)
@@ -3214,18 +3241,12 @@ add_item_to_cache (ECalBackendEws *cbews
 			icalproperty_add_parameter (icalprop, cu_type);
 			icalproperty_add_parameter (icalprop, param);
 
-			if (g_ascii_strcasecmp (attendee->responsetype, "Organizer") == 0)
-				param = icalparameter_new_partstat (ICAL_PARTSTAT_ACCEPTED);
-			else if (g_ascii_strcasecmp (attendee->responsetype, "Tentative") == 0)
-				param = icalparameter_new_partstat (ICAL_PARTSTAT_TENTATIVE);
-			else if (g_ascii_strcasecmp (attendee->responsetype, "Accept") == 0)
-				param = icalparameter_new_partstat (ICAL_PARTSTAT_ACCEPTED);
-			else if (g_ascii_strcasecmp (attendee->responsetype, "Decline") == 0)
-				param = icalparameter_new_partstat (ICAL_PARTSTAT_DECLINED);
-			else if (g_ascii_strcasecmp (attendee->responsetype, "NoResponseReceived") == 0)
-				param = icalparameter_new_partstat (ICAL_PARTSTAT_NEEDSACTION);
-			else if (g_ascii_strcasecmp (attendee->responsetype, "Unknown") == 0)
-				param = icalparameter_new_partstat (ICAL_PARTSTAT_NONE);
+			if (cbews->priv->user_email && (email || attendee->mailbox->email) && e_ews_item_get_my_response_type (item) &&
+			    g_ascii_strcasecmp (email ? email : attendee->mailbox->email, cbews->priv->user_email) == 0) {
+				param = cal_backend_ews_responsetype_to_partstat (e_ews_item_get_my_response_type (item));
+			} else {
+				param = cal_backend_ews_responsetype_to_partstat (attendee->responsetype);
+			}
 			icalproperty_add_parameter (icalprop, param);
 
 			icalcomponent_add_property (icalcomp, icalprop);
diff -up evolution-ews-3.12.11/src/server/e-ews-item.c.read-user-partstat evolution-ews-3.12.11/src/server/e-ews-item.c
--- evolution-ews-3.12.11/src/server/e-ews-item.c.read-user-partstat	2014-09-01 16:50:38.000000000 +0200
+++ evolution-ews-3.12.11/src/server/e-ews-item.c	2016-03-31 17:51:29.608214662 +0200
@@ -134,6 +134,7 @@ struct _EEwsItemPrivate {
 
 	GSList *modified_occurrences;
 	GSList *attachments_ids;
+	gchar *my_response_type;
 	GSList *attendees;
 
 	EwsId *calendar_item_accept_id;
@@ -239,6 +240,9 @@ e_ews_item_dispose (GObject *object)
 	g_slist_free_full (priv->attachments_ids, g_free);
 	priv->attachments_ids = NULL;
 
+	g_free (priv->my_response_type);
+	priv->my_response_type = NULL;
+
 	g_slist_free_full (priv->attendees, (GDestroyNotify) ews_item_free_attendee);
 	priv->attendees = NULL;
 
@@ -1106,6 +1110,9 @@ e_ews_item_set_from_soap_parameter (EEws
 			parse_extended_property (priv, subparam);
 		} else if (!g_ascii_strcasecmp (name, "ModifiedOccurrences")) {
 			process_modified_occurrences (priv, subparam);
+		} else if (!g_ascii_strcasecmp (name, "MyResponseType")) {
+			g_free (priv->my_response_type);
+			priv->my_response_type = e_soap_parameter_get_string_value (subparam);
 		} else if (!g_ascii_strcasecmp (name, "RequiredAttendees")) {
 			process_attendees (priv, subparam, "Required");
 		} else if (!g_ascii_strcasecmp (name, "OptionalAttendees")) {
@@ -1803,6 +1810,14 @@ e_ews_item_dump_mime_content (EEwsItem *
 	return info;
 }
 
+const gchar *
+e_ews_item_get_my_response_type (EEwsItem *item)
+{
+	g_return_val_if_fail (E_IS_EWS_ITEM (item), NULL);
+
+	return item->priv->my_response_type;
+}
+
 const GSList *
 e_ews_item_get_attendees (EEwsItem *item)
 {
diff -up evolution-ews-3.12.11/src/server/e-ews-item.h.read-user-partstat evolution-ews-3.12.11/src/server/e-ews-item.h
--- evolution-ews-3.12.11/src/server/e-ews-item.h.read-user-partstat	2014-05-07 12:49:13.000000000 +0200
+++ evolution-ews-3.12.11/src/server/e-ews-item.h	2016-03-31 17:51:29.608214662 +0200
@@ -267,6 +267,7 @@ e_ews_item_ical_dump (EEwsItem *item);
 EEwsAttachmentInfo *
 e_ews_item_dump_mime_content (EEwsItem *item, const gchar *cache);
 
+const gchar *	e_ews_item_get_my_response_type	(EEwsItem *item);
 const GSList *	e_ews_item_get_attendees	(EEwsItem *item);
 
 const EwsId *	e_ews_item_get_calendar_item_accept_id