Office Settings & Configuration

How to Fix Truncated Email Subjects in Classic Outlook

Khadija Khan Oct 9, 2026 868 views

Question details

The user is unable to view the complete email subject line in Classic Outlook because it gets cut off prematurely.

How to Fix Truncated Email Subjects in Classic Outlook

Product: Classic Outlook
Device & OS: not provided
Scenario: Viewing incoming emails in the Outlook inbox where subject lines often contain specific characters like a number sign (#) followed by a ticket number.
Observed behavior: The email subject is truncated with an ellipsis (...), even when the subject is relatively short, and simply opening the email does not reveal the complete text.

Before you start

Ensure you have access to the affected email and are familiar with opening the message properties in your specific version of Classic Outlook.

Solution 1Recommended

Inspect Message Headers for Hidden Characters

Check the internet headers of the email to see the full subject and identify any hidden line breaks or special characters causing the truncation.

Classic Outlook does not feature a general word-wrap setting for email subject lines. Word-wrap settings only apply to the main content of the message. Truncation usually happens due to unusual characters or hidden formatting sent by the originating mail server.

Open Message Properties

Double-click the truncated email in your inbox to open it in a separate, new window. From the top ribbon, click on 'File' and then select 'Properties'.

Locate Internet Headers

In the Properties window that appears, look for the 'Internet headers' text box located at the bottom of the dialog box.

Find the Subject Line

Scroll through the header text to locate the field that begins with 'Subject:'. This line displays the raw, unmodified subject text as received by Outlook.

Check for Anomalies

Examine the text immediately following the visible portion (e.g., after the ticket number) for any unintended line breaks, unusual characters, or anomalies that might be forcing Outlook to cut off the display.

Inspect Message Headers for Hidden Characters

Word-Wrap Limitations: Modifying Outlook's word-wrap settings will not fix this issue, as those settings exclusively affect the email body content, not the subject line.

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Frequently Asked Questions

Why does Classic Outlook randomly cut off my email subjects?

Outlook may truncate subjects if they contain hidden formatting, unusual characters, or unexpected line breaks (often generated by automated ticketing systems) that force the text display to break in the standard view.

Is there a word-wrap setting for email subjects in Outlook?

No, Classic Outlook does not offer a word-wrap feature specifically for email subject lines. The available word-wrap settings under the application's options only apply to the main body of the email message.

Does opening the email show the full subject if it's truncated in the inbox list?

Not always. If the truncation is caused by hidden line breaks or special characters within the subject's metadata, opening the email in a new window might still display the shortened subject.

How can I read the full subject text if it keeps getting cut off?

The most reliable method is to check the email's Internet Headers by double-clicking the email, going to File, and selecting Properties. The raw, unformatted subject text will be fully visible there.

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