Hi @Ethan Litwin,
Thank you for reaching out to the Microsoft Q&A forum and for clearly outlining your concern.
Based on the details you shared that your sent emails are returning to the Drafts folder and your signature now shows extra spacing between lines. I truly understand and appreciate the effort you took to document exactly what changed and when it started.
New Outlook saves messages as drafts by design and will keep them there whenever a send attempt cannot complete, for example during a brief connection drop, when storage is full, or when a message contains a large attachment. Consequently, the message appears back in Drafts rather than Sent. In addition, the signature editor in New Outlook handles paragraphs differently from classic Outlook, so pressing Enter inserts paragraph spacing that can appear as blank lines. Microsoft is also refining signature management in ongoing updates.
Below are some alternative steps designed to address your situation effectively:
1/ Confirm the send path and clear any stuck conditions
- Open New Outlook and make sure you are online, then send a small test message without attachments. If your Microsoft cloud storage or mailbox is full, free space and try again.
- If a specific email will not send, open it from Drafts, remove any large attachment, save, and send again because oversized files are a common cause of stuck messages.
- Next, send the same test from Outlook on the web. If the web version sends successfully, the account and server are healthy and the Windows app likely needs a local refresh in step 2.
- References:
2/ Refresh and update the New Outlook app
- Restart New Outlook from Task Manager and then reopen it to test sending again.
- After that, update New Outlook from Microsoft Store by opening Library and selecting Get updates, then retest.
- If the behavior continues, reset the New Outlook app data so it reconnects cleanly the next time you open it. Go to Windows Settings, Apps, Installed apps, choose Outlook new, select Advanced options, and then Reset. You will reconnect your accounts on first launch.
- Reference: Troubleshoot Outlook for Windows issues - Microsoft Support
3/ Rebuild the signature to eliminate extra spacing
- When editing your signature, use the Shift + Enter key combination to start a new line without creating a new paragraph.
- Recreate the signature from scratch by:
- Copying the signature content into Notepad to remove hidden formatting.
- Pasting it back into the Outlook signature editor and reformatting it (font, size) in a minimal way.
- Ensure Outlook is sending emails in HTML format:
- Go to Settings > Mail > Compose & Reply and select “HTML” under email format.

4/ Contact IT administrator:
Since your account is managed by your organization, please contact your IT administrator to review your permissions and policies. If the issue persists after these checks, ask your IT administrator to submit a support request directly to Microsoft Support team.
They can raise a support ticket by visiting: Get support - Microsoft 365 admin | Microsoft Learn
As community moderators, we appreciate your understanding that our access to internal development details is limited. Our primary role is to guide users toward the appropriate resources and support channels. While we may not have visibility into deeper backend analysis, we’ll continue doing our best to support you within the scope of our responsibilities.
I hope this information is helpful. Please follow these steps and let me know if it works for you. If you have any updates regarding the issue, please feel free to share them with me.
Thank you for your patience and your understanding. I look forward to continuing the conversation.
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