Outlook signature has changed spacing

Question

Outlook signature has changed spacing

Brandi Naquin 50

My Mac updated last night and now my signature in outlook has spacing that was not previously there. When I go into the signature tabs to fix this, it appears as normal. How can I change this without changing it every time I create an email?

Richard van Breugel 0 Reputation points

2026-02-24T18:38:22.89+00:00

Same problem here

Outlook for Mac, version 16.106.xxxxxxxx
Mac Tahoe 26.3

I had an empty mail in my concepts, when I add one you can see the difference.

And after the latest update:

It happens with all signatures.

Restarted the Mac, and did an update of Outlook (to version 16.106.xxxxxxxx) but to no avail.
Vergil-V 13,220 Reputation points Microsoft External Staff Moderator

2026-02-25T05:24:41.1366667+00:00

Please note that our forum is a public platform, and we will modify your question to hide your personal information in the description. Kindly ensure that you hide any personal or organizational information the next time you post an error or other details to protect personal data.

Hi @Richard van Breugel

Thank you for reaching out.

May I confirm whether creating a completely new signature helped resolve the issue on your side?

In addition, you may consider installing an Outlook for Mac version earlier than 16.101.xx. You can find these versions in the Update history for Office for Mac - Office release notes | Microsoft Learn. In my testing, the issue did not appear when using a version below 16.101.xx

I hope this gives you some additional clarity.
Richard van Breugel 0 Reputation points

2026-02-25T18:59:16.8033333+00:00

I thought I removed enough already, excuse me.

I installed the older version but when starting I always get the latest version, when I remove the latest will all my settings be gone? How to install the old over the new version?
Richard van Breugel 0 Reputation points

2026-02-25T19:01:53.3+00:00

Opening the signatures, copying them and pasting them in a new signature does solve the problem.
Richard van Breugel 0 Reputation points

2026-02-25T19:18:13.37+00:00

But they are not exactly the same...
Vergil-V 13,220 Reputation points Microsoft External Staff Moderator

2026-02-26T10:27:52.5033333+00:00

Hi @Richard van Breugel
Thank you for sharing.

After installing Outlook for Mac with a version earlier than 16.106.xx, please also make sure to disable AutoUpdate.

You can do this by going to: Help > Check for Updates > uncheck “Automatically keep Microsoft Apps up to date.”

Regarding copying and pasting the signature, some formatting elements may not transfer perfectly. Certain layouts, spacing, and styling may require manual adjustments to recreate the original look. Copying and pasting alone may not always reproduce the exact formatting.

I hope this helps provide additional clarity.
Richard van Breugel 0 Reputation points

2026-02-27T16:58:55.7266667+00:00

I cannot install the older over the newer, the newer stays the default app.

Do I need to remove the newer one first? What happens with my settings?
Vergil-V 13,220 Reputation points Microsoft External Staff Moderator

2026-03-02T01:13:36.4533333+00:00

Hi @Richard van Breugel
To install an earlier version of Microsoft Outlook for Mac, you will need to remove the currently installed version first.

You can do this by going to Finder > Applications > Microsoft Outlook > right‑clicking it > Move to Trash.

Once the current version is removed, you can install the earlier version by running the updater.pkg file from the version history notes. After installation, make sure to turn off AutoUpdate to prevent Outlook from updating again.

I hope this provides additional clarity.
Keith Kolodgie 0 Reputation points

2026-03-06T14:05:31.17+00:00

Go to settings. Delete current signature(s). Then re-create your signature and it will resolve.
Blaine McChesney 0 Reputation points

2026-03-11T15:16:49.54+00:00

Same here. I tried to "clear all formatting" and then save it but, same problem.... still double spaced.... This bug just happened when I updated MAC software

8 answers

Your answer

Richard van Breugel 0 Reputation points

2026-02-24T18:38:22.89+00:00

Same problem here

Outlook for Mac, version 16.106.xxxxxxxx
Mac Tahoe 26.3

I had an empty mail in my concepts, when I add one you can see the difference.

And after the latest update:

It happens with all signatures.

Restarted the Mac, and did an update of Outlook (to version 16.106.xxxxxxxx) but to no avail.
Vergil-V 13,220 Reputation points Microsoft External Staff Moderator

2026-02-25T05:24:41.1366667+00:00

Please note that our forum is a public platform, and we will modify your question to hide your personal information in the description. Kindly ensure that you hide any personal or organizational information the next time you post an error or other details to protect personal data.

Hi @Richard van Breugel

Thank you for reaching out.

May I confirm whether creating a completely new signature helped resolve the issue on your side?

In addition, you may consider installing an Outlook for Mac version earlier than 16.101.xx. You can find these versions in the Update history for Office for Mac - Office release notes | Microsoft Learn. In my testing, the issue did not appear when using a version below 16.101.xx

I hope this gives you some additional clarity.
Richard van Breugel 0 Reputation points

2026-02-25T18:59:16.8033333+00:00

I thought I removed enough already, excuse me.

I installed the older version but when starting I always get the latest version, when I remove the latest will all my settings be gone? How to install the old over the new version?
Richard van Breugel 0 Reputation points

2026-02-25T19:01:53.3+00:00

Opening the signatures, copying them and pasting them in a new signature does solve the problem.
Richard van Breugel 0 Reputation points

2026-02-25T19:18:13.37+00:00

But they are not exactly the same...
Vergil-V 13,220 Reputation points Microsoft External Staff Moderator

2026-02-26T10:27:52.5033333+00:00

Hi @Richard van Breugel
Thank you for sharing.

After installing Outlook for Mac with a version earlier than 16.106.xx, please also make sure to disable AutoUpdate.

You can do this by going to: Help > Check for Updates > uncheck “Automatically keep Microsoft Apps up to date.”

Regarding copying and pasting the signature, some formatting elements may not transfer perfectly. Certain layouts, spacing, and styling may require manual adjustments to recreate the original look. Copying and pasting alone may not always reproduce the exact formatting.

I hope this helps provide additional clarity.
Richard van Breugel 0 Reputation points

2026-02-27T16:58:55.7266667+00:00

I cannot install the older over the newer, the newer stays the default app.

Do I need to remove the newer one first? What happens with my settings?
Vergil-V 13,220 Reputation points Microsoft External Staff Moderator

2026-03-02T01:13:36.4533333+00:00

Hi @Richard van Breugel
To install an earlier version of Microsoft Outlook for Mac, you will need to remove the currently installed version first.

You can do this by going to Finder > Applications > Microsoft Outlook > right‑clicking it > Move to Trash.

Once the current version is removed, you can install the earlier version by running the updater.pkg file from the version history notes. After installation, make sure to turn off AutoUpdate to prevent Outlook from updating again.

I hope this provides additional clarity.
Keith Kolodgie 0 Reputation points

2026-03-06T14:05:31.17+00:00

Go to settings. Delete current signature(s). Then re-create your signature and it will resolve.
Blaine McChesney 0 Reputation points

2026-03-11T15:16:49.54+00:00

Same here. I tried to "clear all formatting" and then save it but, same problem.... still double spaced.... This bug just happened when I updated MAC software

Answer 1

This was annoying me tremendously for the last few months. I just figured it out. When you want a new line in your signature, do not press Enter (for Windows PC) or Return (for Mac). Instead, press Shift+Enter (for Windows PC) or Shift+Return (for Mac). This will also create a new line but for some reason this eliminates the extra space when pasting the signature into an email. Weirdly, as others noticed, pressing Enter or Return will not show extra space in the signature editor, but will add the space when adding the signature to the email. It does not make any sense. Signatures are so common and it's strange that a supposedly good company like Microsoft would have such an idiotic bug in the system.

Answer 2

Sharen Lee 5

Frustrating, but if you open the signature in the sig editor, select all and clear formatting it removes the double spacing. I had to manually go through and re-format the areas that I wanted bolded etc.

0 comments

Answer 3

Brandi Naquin 50

I created a new signature and it is no longer auto adjusting the space.

Richard van Breugel 0 Reputation points

2026-02-24T18:39:15.5366667+00:00

Completely new? Because editing won't solve the problem :(

Answer 4

AI answer

If your Outlook signature has changed spacing after a Mac update, it may be due to how the signature is rendered in the email client. Here are a few steps you can take to address this issue:

Check Signature Formatting: Go to the signature settings in Outlook and ensure that there are no extra spaces or line breaks in the signature. Sometimes, hidden formatting can cause issues.
Simplify the Signature: If your signature contains complex formatting (like tables or multiple fonts), try simplifying it. Use basic text formatting and avoid special characters, as they can sometimes lead to rendering issues.
Create a New Signature: If the current signature continues to have spacing issues, consider creating a new signature from scratch. This can sometimes resolve hidden formatting problems.
Update Outlook: Ensure that your Outlook application is updated to the latest version, as updates can fix bugs related to signature rendering.
Contact Support: If the issue persists, consider reaching out to Microsoft support for assistance, as they may have specific solutions for your version of Outlook on Mac.

Unfortunately, there is no direct setting to automatically adjust spacing for signatures in every new email, so these steps may help you manage the issue more effectively.

AI-generated content may be incorrect. Read our transparency notes for more information.

Answer 5

Vergil-V 13,220 Microsoft External Staff Moderator

Hi @Brandi Naquin

Thanks for reaching out to the Microsoft Q&A forum. 

I tried to reproduce your situation on my test Mac running macOS Sequoia 15.7.1 with Outlook for Mac version 16.106, and the signature did not show the spacing you described.

To better understand your situation, may I clarify the following?

Does this behavior also appear in Legacy Outlook for Mac?
What is your current macOS version and Outlook for Mac version?

In the meantime, you may try creating a completely new signature to see whether the behavior persists.

If all other troubleshooting steps do not help, you may also consider uninstalling Outlook for Mac and reinstalling it using the updater.pkg, which can be downloaded from: Update history for Office for Mac - Office release notes | Microsoft Learn

I hope this provides some additional insight. If you have any updates, please feel free to share them. I look forward to hearing from you.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Brandi Naquin 50 Reputation points

2026-02-23T02:18:12.7833333+00:00

Thank you. I had actually created a new signature and that seemed to have corrected the problem. The signature is correct so I deleted the old one.
Vergil-V 13,220 Reputation points Microsoft External Staff Moderator

2026-02-23T02:42:21.3933333+00:00

Hi @Brandi Naquin
Thank you for sharing the update and confirming the outcome.

Since the new signature does not show the behavior, it suggests that the old signature was either corrupted or had a temporary glitch that caused the unexpected spacing.

If you found my initial response at least partially helpful and it provided the insight you were looking for, please consider marking it as the “Accepted Answer” or giving them an upvote. This helps others in the community who may be facing a similar issue to find a solution more easily.

Thanks again for your time.
Gary Kohlman 5 Reputation points

2026-05-22T17:02:02.72+00:00

Same issue on Version 16.109.1
Hornblower409 8,900 Reputation points

2026-05-23T12:37:29.8866667+00:00

@Gary Kohlman said

Same issue on Version 16.109.1

Are you seeing this problem?
https://learn.microsoft.com/en-us/answers/questions/5896340/spacing-removed-from-outlook-for-mac-signature

If so, you would be better served by commenting on that post rather than this old one.

If this is not your problem, you need to start a new thread using the "Ask a question" button at the top of this page to create a new Question and include the details for your specific problem.
Gary Kohlman 5 Reputation points

2026-05-23T13:41:16.08+00:00

Hornblower409 Yes exactly! Here is how it is set up:

And here is how it displays:

Upgrade to 16.109.1 is when this first started. Hoping a fix comes with next update.
Hornblower409 8,900 Reputation points

2026-05-23T14:01:25.27+00:00

@Gary Kohlman

you would be better served by commenting on
https://learn.microsoft.com/en-us/answers/questions/5896340/spacing-removed-from-outlook-for-mac-signature
rather than this old post that no one except you and me are following.

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Outlook signature has changed spacing

8 answers

Your answer