diff --git a/i18n/en_US.yaml b/i18n/en_US.yaml
index 9074c8a1..6427a346 100644
--- a/i18n/en_US.yaml
+++ b/i18n/en_US.yaml
@@ -465,42 +465,42 @@ backend:
       title:
         other: "[{{.SiteName}}] Confirm your new email address"
       body:
-        other: "Confirm your new email address for {{.SiteName}} by clicking on the following link:<br>\n<a href='{{.ChangeEmailUrl}}' target='_blank'>{{.ChangeEmailUrl}}</a><br><br>\n\nIf you did not request this change, please ignore this email.\n"
+        other: "Confirm your new email address for {{.SiteName}} by clicking on the following link:<br>\n<a href='{{.ChangeEmailUrl}}' target='_blank'>{{.ChangeEmailUrl}}</a><br><br>\n\nIf you did not request this change, please ignore this email.<br><br>\n\n--<br>\nNote: This is an automatic system email, please do not reply to this message as your response will not be seen."
     new_answer:
       title:
         other: "[{{.SiteName}}] {{.DisplayName}} answered your question"
       body:
-        other: "<a href='{{.AnswerUrl}}'>{{.QuestionTitle}}</a><br><br>\n\n{{.DisplayName}}:<br>\n<blockquote>{{.AnswerSummary}}</blockquote><br>\n<a href='{{.AnswerUrl}}'>View it on {{.SiteName}}</a><br><br>\n\n--<br>\n<small><a href='{{.UnsubscribeUrl}}'>Unsubscribe</a></small>"
+        other: "<a href='{{.AnswerUrl}}'>{{.QuestionTitle}}</a><br><br>\n\n{{.DisplayName}}:<br>\n<blockquote>{{.AnswerSummary}}</blockquote><br>\n<a href='{{.AnswerUrl}}'>View it on {{.SiteName}}</a><br><br>\n\n--<br>\nNote: This is an automatic system email, please do not reply to this message as your response will not be seen.<br><br>\n\n<small><a href='{{.UnsubscribeUrl}}'>Unsubscribe</a></small>"
     invited_you_to_answer:
       title:
         other: "[{{.SiteName}}] {{.DisplayName}} invited you to answer"
       body:
-        other: "<a href='{{.InviteUrl}}'>{{.QuestionTitle}}</a><br><br>\n\n{{.DisplayName}}:<br>\n<blockquote>I think you may know the answer.</blockquote><br>\n<a href='{{.InviteUrl}}'>View it on {{.SiteName}}</a><br><br>\n\n--<br>\n<small><a href='{{.UnsubscribeUrl}}'>Unsubscribe</a></small>"
+        other: "<a href='{{.InviteUrl}}'>{{.QuestionTitle}}</a><br><br>\n\n{{.DisplayName}}:<br>\n<blockquote>I think you may know the answer.</blockquote><br>\n<a href='{{.InviteUrl}}'>View it on {{.SiteName}}</a><br><br>\n\n--<br>\nNote: This is an automatic system email, please do not reply to this message as your response will not be seen.<br><br>\n\n<small><a href='{{.UnsubscribeUrl}}'>Unsubscribe</a></small>"
     new_comment:
       title:
         other: "[{{.SiteName}}] {{.DisplayName}} commented on your post"
       body:
-        other: "<a href='{{.CommentUrl}}'>{{.QuestionTitle}}</a><br><br>\n\n{{.DisplayName}}:<br>\n<blockquote>{{.CommentSummary}}</blockquote><br>\n<a href='{{.CommentUrl}}'>View it on {{.SiteName}}</a><br><br>\n\n--<br>\n<small><a href='{{.UnsubscribeUrl}}'>Unsubscribe</a></small>"
+        other: "<a href='{{.CommentUrl}}'>{{.QuestionTitle}}</a><br><br>\n\n{{.DisplayName}}:<br>\n<blockquote>{{.CommentSummary}}</blockquote><br>\n<a href='{{.CommentUrl}}'>View it on {{.SiteName}}</a><br><br>\n\n--<br>\nNote: This is an automatic system email, please do not reply to this message as your response will not be seen.<br><br>\n\n<small><a href='{{.UnsubscribeUrl}}'>Unsubscribe</a></small>"
     new_question:
       title:
         other: "[{{.SiteName}}] New question: {{.QuestionTitle}}"
       body:
-        other: "<a href='{{.QuestionUrl}}'>{{.QuestionTitle}}</a><br>\n<small>{{.Tags}}</small><br><br>\n\n--<br>\n<small><a href='{{.UnsubscribeUrl}}'>Unsubscribe</a></small>"
+        other: "<a href='{{.QuestionUrl}}'>{{.QuestionTitle}}</a><br>\n<small>{{.Tags}}</small><br><br>\n\n--<br>\nNote: This is an automatic system email, please do not reply to this message as your response will not be seen.<br><br>\n\n<a href='{{.UnsubscribeUrl}}'>Unsubscribe</a></small>"
     pass_reset:
       title:
         other: "[{{.SiteName }}] Password reset"
       body:
-        other: "Somebody asked to reset your password on {{.SiteName}}.<br><br>\n\nIf it was not you, you can safely ignore this email.<br><br>\n\nClick the following link to choose a new password:<br>\n<a href='{{.PassResetUrl}}' target='_blank'>{{.PassResetUrl}}</a>\n"
+        other: "Somebody asked to reset your password on {{.SiteName}}.<br><br>\n\nIf it was not you, you can safely ignore this email.<br><br>\n\nClick the following link to choose a new password:<br>\n<a href='{{.PassResetUrl}}' target='_blank'>{{.PassResetUrl}}</a>\n<br><br>\n\n--<br>\nNote: This is an automatic system email, please do not reply to this message as your response will not be seen."
     register:
       title:
         other: "[{{.SiteName}}] Confirm your new account"
       body:
-        other: "Welcome to {{.SiteName}}!<br><br>\n\nClick the following link to confirm and activate your new account:<br>\n<a href='{{.RegisterUrl}}' target='_blank'>{{.RegisterUrl}}</a><br><br>\n\nIf the above link is not clickable, try copying and pasting it into the address bar of your web browser.\n"
+        other: "Welcome to {{.SiteName}}!<br><br>\n\nClick the following link to confirm and activate your new account:<br>\n<a href='{{.RegisterUrl}}' target='_blank'>{{.RegisterUrl}}</a><br><br>\n\nIf the above link is not clickable, try copying and pasting it into the address bar of your web browser.\n<br><br>\n\n--<br>\nNote: This is an automatic system email, please do not reply to this message as your response will not be seen."
     test:
       title:
         other: "[{{.SiteName}}] Test Email"
       body:
-        other: "This is a test email."
+        other: "This is a test email.\n<br><br>\n\n--<br>\nNote: This is an automatic system email, please do not reply to this message as your response will not be seen."
   action_activity_type:
     upvote:
       other: upvote