Issue #3489279 by zengenuity: Default to deleting emails after 30 days

config/easy_email.easy_email_type.default.yml

@@ -23,6 +23,6 @@ attachmentScheme: private
 attachmentDirectory: ''
 saveEmail: true
 allowSavingEmail: true
-purgeEmails: false
-purgeInterval: null
-purgePeriod: null
+purgeEmails: true
+purgeInterval: 30
+purgePeriod: days