diff --git a/mrQA/utils.py b/mrQA/utils.py
index cd925fb..0c5f70c 100644
--- a/mrQA/utils.py
+++ b/mrQA/utils.py
@@ -1424,9 +1424,9 @@ def send_email(log_filepath,
                       f'{project_code} dt. {today.strftime("%m.%d.%Y")}')
     msg['From'] = 'mrqa'
     if project_code in to_emails:
-        msg['To'] = to_emails[project_code]
+        msg['To'] = ",".join(to_emails[project_code])
     else:
-        msg['To'] = config['default_email']
+        msg['To'] = ",".join(config['default_email'])
 
     # Attach report to the email
     with open(report_path, 'rb') as fp: