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The Blue Line and Inline Replies in HTML messages

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› Outlook › Email › The Blue Line and Inline Replies in HTML messages

Last reviewed on October 9, 2024     6 Comments

In another area where the formatting generates complaints, some users are frustrated by the little blue line down the left side of HTML replies. This blue line is the "quote prefix" for HTML formatted messages. It's used only when you set Outlook to prefix replies.

The problem? If you reply inline, the blue line doesn't break when you press Enter and type a comment. If you don't use colors for HTML replies, or use the standard blue, your comments may be harder to notice.

Screenshots of an Inline reply in an HTML message:
HTML inline replies

And in a plain text message:
Inline reply with a plain text message

The only way to remove the blue line is by not using a quote prefix or by converting the message to plain text before replying.

To Change Reply Settings

You can change your quote prefix settings in File, Options, Mail (Outlook 2010 and up) or in Tools, Options button, E-mail Options (earlier versions). My preference is "Include original message text" because it results in a clean-looking message, even after multiple replies back and forth.

Reply and forward options

Note that the quote prefix character (usually “>”) is applied only to plain text messages. When you enable this option and reply to an HTML message, the quoted message is prefaced with the blue line.

Outlook 2007 and earlier: Tools, Options, Email options.

Outlook 2007 and earlier

 

Mark Comments With

Outlook has an option for "Preface Comments with [name]" - when you begin to type within the quoted message, it adds your name or initials in brackets, like this:

mark my comments with

This makes it easier to follow the responses when you use "reply inline", as seen in the screenshot below:
no quote marks - mark comments with

More Information

Read Outlook Messages using Plain Text

The Blue Line and Inline Replies in HTML messages was last modified: October 9th, 2024 by Diane Poremsky

Related Posts:

  • To Use Internet-Style Quoting
  • Can I use my own stationery in replies?
  • Changing the Reply format revisited
  • To Change the Look of Outlook Replies

About Diane Poremsky

A Microsoft Outlook Most Valuable Professional (MVP) since 1999, Diane is the author of several books, including Outlook 2013 Absolute Beginners Book. She also created video training CDs and online training classes for Microsoft Outlook. You can find her helping people online in Outlook Forums as well as in the Microsoft Answers and TechNet forums.

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Chris
August 1, 2017 10:22 pm

I've tried this in Outlook 2010. Whenever I switch the formatting to plain-text it doesn't bother to insert the > prefix even through it's selected in the options. I ended up having to reset it to read every message as plain text (which is really just good security. Letting HTML/RTF messages display whatever they want in this day and age of massive virus epidemics is just plain stupid.)

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Diane Poremsky
Author
Reply to  Chris
August 1, 2017 11:35 pm

Correct, the message needs to be plain text before you hit reply to get the prefix. If you change it after you hit reply, you'll only remove the blue line.

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HoKe
May 5, 2014 7:21 am

hello, how to get a button to ribbon which turns on/off the CommentWith function?

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Diane Poremsky
Reply to  HoKe
May 5, 2014 8:33 am

That is a registry setting - HKCU\Software\Microsoft\Office\15.0\Common\MailSettings\MarkComments - you can use VBA to read and change keys but not all keys will take effect until you restart outlook, so it might not work. (I haven't tested this key.)

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Diane Poremsky
Reply to  Diane Poremsky
May 5, 2014 8:45 am

Ah, shoot, i forgot the url - https://www.slipstick.com/developer/read-and-change-a-registry-key-using-vba/ with instructions. :)

Looks like this will work - you'll need the functions from that page and this code - then create a button on the QAT or ribbon for it.
Sub ChangeCommentWith()

Dim myRegKey As String
Dim myValue As String
Dim myFileAs As String
Dim myAnswer As Integer

'get registry key to work with
myRegKey = "HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common\MailSettings\MarkComments"
If myRegKey = "" Then Exit Sub
'check if key exists
If RegKeyExists(myRegKey) = True Then
'key exists, read it
myValue = RegKeyRead(myRegKey)
If myValue = 1 Then myValue = "0" Else myValue = 1

Else
myRegKey = "HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common\MailSettings\MarkComments"
myValue = 1

End If
If myValue <> "" Then
RegKeySave myRegKey, myValue
MsgBox "Registry key saved."
End If
End Sub

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Shafin
April 2, 2014 4:45 am

Mark comments was really helpful. i was in search for such an option in my company. Appreciated!!!

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