[hotfix] check daily email limit before sending emails

frappe/email/queue.py

@@ -218,9 +218,17 @@ def check_email_limit(recipients):
 		or frappe.flags.in_test):
 
 		monthly_email_limit = frappe.conf.get('limits', {}).get('emails')
+		daily_email_limit = frappe.conf.get('limits', {}).get('daily_emails')
 
 		if frappe.flags.in_test:
 			monthly_email_limit = 500
+			daily_email_limit = 50
+
+		# get count of today's sent mails
+		today = get_emails_sent_today()
+		if daily_email_limit and (today + len(recipients)) > daily_email_limit:
+			throw(_("Cannot send this email. You have crossed the sending limit of {0} emails for this day.").format(daily_email_limit),
+				EmailLimitCrossedError)
 
 		if not monthly_email_limit:
 			return
@@ -236,6 +244,10 @@ def get_emails_sent_this_month():
 	return frappe.db.sql("""select count(name) from `tabEmail Queue` where
 		status='Sent' and MONTH(creation)=MONTH(CURDATE())""")[0][0]
 
+def get_emails_sent_today():
+	return frappe.db.sql("""select count(name) from `tabEmail Queue` where
+		status='Sent' and DATE(creation)=CURDATE()""")[0][0]
+
 def get_unsubscribe_message(unsubscribe_message, expose_recipients):
 	if unsubscribe_message:
 		unsubscribe_html = '''<a href="<!--unsubscribe url-->"