One signature across your Outlook devices

Before you start

You'll need an administrator account for your company's Microsoft 365 subscription to complete steps 2 and 3. If you don't have administrator access, send this page to your Microsoft 365 administrator and ask them to complete those steps for you. Then come back to step 4 to test your signature.

You don't have to install the add-in separately on your phone and computers. You do need a compatible Outlook app, your CYRMARA Microsoft 365 Exchange Online account and an internet connection.

1. Download your installation file

Click the button to download CYRMARA-Outlook.xml. Keep the file on your computer or send it to your Microsoft 365 administrator. This is the file used to install Version 6 for your account.

2. Remove your previous CYRMARA add-in

Do this only if the previous version is already installed and you're doing a clean reinstall. If your administrator can update the existing add-in in place using the Version 6 XML, you can skip removal and go to step 3. Don't install two copies of the add-in.

1. Sign in with an administrator account at the Microsoft 365 admin center.
2. In the left menu, select Show all → Settings → Integrated apps.
3. Find and select CYRMARA Signature in your deployed apps.
4. On the Overview page, choose Remove app (sometimes listed under Actions).
5. Confirm the removal when Microsoft asks, then return to Integrated apps.
6. Once the previous installation is removed from the admin center, continue to step 3.

If CYRMARA Signature isn't listed, there's nothing to remove here. This operation removes the old add-in deployment, not your mailbox or sent emails. Changes may take time to disappear from every Outlook app.

3. Install Version 6 in Microsoft 365

1. In the Microsoft 365 admin center, go to Settings → Integrated apps.
2. For a new deployment, choose Upload custom apps, then select Office Add-in.
3. Upload the CYRMARA-Outlook.xml file from step 1. If you're updating an existing add-in instead, use its available update option and the same file.
4. Assign the add-in to your account only: eduardo.casal@cyrmara.com.
5. Review the requested ReadWriteItem permissions and approve the deployment and any requested administrator consent.
6. Return to Integrated apps → CYRMARA Signature. Check that it is enabled and that your account is listed under the assigned users.

That's the installation. You don't need to switch automation on manually or upload the file again on your other devices.

The Version 6 XML has manifest version 1.0.6.0. Microsoft 365 may take up to 24 hours, and sometimes longer, to distribute a new or updated add-in.

4. Check that your signature appears automatically

1. After Microsoft 365 has deployed the add-in, open Outlook on the web, signed in to eduardo.casal@cyrmara.com.
2. Click New mail and wait briefly. Your CYRMARA signature should appear without selecting any add-in button.
3. Create a fresh reply and a forward and check that the signature appears there too.
4. Send a test email to another mailbox and check the signature in the received email, including the logo, contact links and mobile layout.
5. Repeat the test in the Outlook apps you use: iPhone, Mac and/or Windows. Update and fully close/reopen each app first.

Use a brand-new message when testing, not an existing draft. On iPhone, start the message directly in Outlook; composing from another app's Share menu may not trigger automatic insertion. Expand the reply editor if you can't see the whole signature.

5. Prevent duplicate signatures

Only do this after your new automatic signature works. If you see the signature twice, your previous saved Outlook signature may still be set as the default. Save a copy of it, then turn off that old default for your CYRMARA account.

• Outlook on the web / new Outlook for Windows: Open Settings → Accounts → Signatures, select your CYRMARA account and turn off automatic insertion of the old saved signature.
• Outlook for Mac: Open Outlook → Settings → Signatures. Under your account, set the old default signature to None for new messages and replies/forwards.
• Classic Outlook for Windows: Go to File → Options → Mail → Signatures and set your old default signatures to (none).
• Outlook on iPhone: Open Outlook Settings → Mail → Signature. If needed, enable Per Account Signature and clear only the old saved signature for your CYRMARA account.

These settings affect only your previous saved signature, not the newly installed CYRMARA add-in. Don't remove the new add-in to fix duplicates.

6. If your signature doesn't appear

1. First, try a brand-new email in Outlook on the web from eduardo.casal@cyrmara.com.
2. Check with your Microsoft 365 administrator that CYRMARA Signature is enabled, its deployment is complete and your account is assigned to it.
3. Make sure your administrator uploaded the Version 6 XML and approved any required consent. Then refresh Outlook on the web or fully reopen the desktop/mobile app.
4. In a new draft on Outlook desktop/web, look for Apps → CYRMARA Signature. If it's there but automatic insertion fails, open it to check or insert the signature in that draft. If it isn't listed at all, check the Microsoft 365 deployment first.
5. If the signature still doesn't appear, send your administrator a screenshot of the Integrated apps status and your affected device/Outlook version, plus a screenshot of a brand-new draft.

The add-in runs only with compatible Outlook versions, while online, and when sending from your exact CYRMARA email address. Different recipients' email apps may display light and dark versions differently.