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How to change/edit subject lines of received messages in Outlook?

Author: Kelly Last Modified: 2016-12-05

For the sake of easy searching, being consistent with the message content, or other purposes, you may need to edit or change some received messages’ subjects in Outlook. Nevertheless, it seems nowhere that these subjects can be edited or changed. Actually Microsoft Outlook supports this feature, and here we will guide you to edit or change the subjects of received messages with ease.

Change/edit subject line of one email in Outlook

Change/edit subject line of multiple emails in Outlook

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arrow blue right bubbleChange/edit subject line of one email in Outlook

The following steps will guide you to change or edit one email's subject line quickly in Outlook. Please do as follows:

1. In the Mail view, double click to open the email whose subject line you will change.

2. Now the email is opening in the Message window. Please click the button at the bottom-right corner of message header to expand the message header. See screenshot:

Note: In Outlook 2010 or earlier version, the message header is expanded by default, please skip this step directly.


3. Now the message header is expanded. Please edit the subject line directly, and then click the Save button. See screenshot:

So far, you have changed/edited the subject line of the specified email already. Please close the Message window as you need.

arrow blue right bubbleChange/edit subject line of multiple emails in Outlook

If you need to change multiple emails' subject lines in Outlook, above method will be a little tedious. Here, this method will guide you to change the folder's view setting, and edit emails' subject lines in the Message List directly. Please do as follows:

1. In the Mail view, open the folder containing emails whose subject lines you will change, and click View > View Settings. See screenshot:

2. Now the Advanced View Settings dialog box comes out, please click the Other Settings button. See screenshot:

3. In the popping out Other Settings dialog box, please check the Allow in-cell editing option, and then click the OK buttons successively to close both dialog boxes.

4. Now you return to the folder, please click View > Reading Pane > Off to close the reading pane. See screenshot:

5. Now in the Message List, please click the subject line you want to change, and then edit it directly as below screenshot shown.

And then repeat this step to edit multiple emails' subject lines as you need.

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Comments (24)
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This comment was minimized by the moderator on the site
I'm aware that the date, time and such columns as those cannot be edited, but I've viewed a tutorial where a "Notes" column can be inserted and edited to contain notes the user wishes to see.  Unfortunately, my Outlook 365 allows me to add the column, and to enter edit mode, but it will not take any data ... I get an error tone.  There must be many other columns that allow the user to enter or edit data, or ... ?
This comment was minimized by the moderator on the site
Is there a way to add the same text to the beginning of all the subject lines all at once rather than needing to insert the text one at a time?  If so, can this be done with using VBA or a third-party app?
This comment was minimized by the moderator on the site
This is a huge game-changer for me. Thank you so much!!! It's a happy day! :-)
This comment was minimized by the moderator on the site
could i change date or time of incomming emails?

could i change reciefed from or sent to inthe header?

This comment was minimized by the moderator on the site
Hi Panama Smaek,
I am afraid it is impossible to change some message header information of an incoming email, such as from, to, sent time etc.
Here is a roundabout trick to change them: click to open the email in the Message window, click Message > Actions > Resent This Message, and then change the from, to as you need. And finally, save the message without sending.
This comment was minimized by the moderator on the site
Having Conversation View on is the reason Subject Lines weren't editable. When I uncheck the box in View > "Show as Conversations", I'm able to edit. However, this poses a different problem - I heavily depend on viewing my emails as Conversations. Setting this view back on, now every newly changed email shows the old subject line text. Is there a way to enforce the new subject line text for Conversations?
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