diff --git a/frappe/core/doctype/doctype/doctype.py b/frappe/core/doctype/doctype/doctype.py
index 74f98aeba7..170fc72989 100644
--- a/frappe/core/doctype/doctype/doctype.py
+++ b/frappe/core/doctype/doctype/doctype.py
@@ -315,6 +315,7 @@ def validate_fields(meta):
 		if not d.permlevel: d.permlevel = 0
 		if not d.fieldname:
 			frappe.throw(_("Fieldname is required in row {0}").format(d.idx))
+		d.fieldname = d.fieldname.lower()
 		check_illegal_characters(d.fieldname)
 		check_unique_fieldname(d.fieldname)
 		check_illegal_mandatory(d)
diff --git a/frappe/public/js/frappe/views/communication.js b/frappe/public/js/frappe/views/communication.js
index e9e4291506..4f979470af 100644
--- a/frappe/public/js/frappe/views/communication.js
+++ b/frappe/public/js/frappe/views/communication.js
@@ -331,7 +331,7 @@ frappe.views.CommunicationComposer = Class.extend({
 			btn: btn,
 			callback: function(r) {
 				if(!r.exc) {
-					if(form_values.send_email)
+					if(form_values.send_email && r.message["recipients"])
 						msgprint(__("Email sent to {0}", [r.message["recipients"]]));
 					me.dialog.hide();
 
diff --git a/frappe/templates/pages/print.py b/frappe/templates/pages/print.py
index a2ef5b6f44..042cf15c42 100644
--- a/frappe/templates/pages/print.py
+++ b/frappe/templates/pages/print.py
@@ -277,7 +277,10 @@ def get_visible_columns(data, table_meta, df):
 		# columns specified by column builder
 		for col_df in df.get("visible_columns"):
 			# load default docfield properties
-			newdf = table_meta.get_field(col_df.get("fieldname")).as_dict().copy()
+			docfield = table_meta.get_field(col_df.get("fieldname"))
+			if not docfield:
+				continue
+			newdf = docfield.as_dict().copy()
 			newdf.update(col_df)
 			if add_column(newdf):
 				columns.append(newdf)