There are multiple possibilities and that issue comes in older version of Microsoft Outlook.
1. Avoid Pasting Unbroken Long Lines
Look for any content you pasted that’s:
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A single long paragraph with no spaces or line breaks
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Minified code (like HTML, CSS, JS)
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Base64 text
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JSON or XML
⚠️ Even a single long word or URL can cause this if it’s long enough.
➡️ Break the lines manually or use a text editor like VS Code or Notepad++ to reformat (wrap) the content before pasting into Outlook.
2. Switch the Format in Outlook
Outlook sometimes doesn’t wrap lines properly in Rich Text format.
Do this:
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Click on the Format Text tab in the compose window.
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Choose Plain Text or HTML.
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Re-paste or retype your message.
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Then resend.
3. Attach Instead of Pasting
If you're sharing long logs, JSON, or code:
✅ Save as a .txt file and attach it rather than pasting it inline.
4. Avoid Special Paste
If you’re copying from Word, Excel, or a code editor, try:
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Paste as plain text:
Right-click → Paste as plain textorCmd+Shift+V / Ctrl+Shift+V.
