ExSign for Microsoft 365

Outlook Edition

Client-Side Signatures for Microsoft 365.

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Documentation Server-Side Signatures

Signatures for M365 (Client-Side)

Allow Microsoft 365 users to see their signatures in their Outlook clients while they compose emails. With the ExSign for Microsoft 365 Outlook Edition, signatures are directly inserted into the email body as senders compose their email in Microsoft Outlook.

With our specially designed Outlook add-in, signatures are automatically retrieved and applied to the desired mailboxes, enabling end users to see their signatures in real-time as they compose emails.

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More Control

Create standard signatures for all users in your Microsoft 365 organization. Display signatures to your users, as they type in their emails in their Outlook clients. Maintain full control over signatures while still allowing your employees a full preview.


How Mail Flows in M365 Outlook Edition

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Outlook Clients

Works seamlessly with Outlook for Windows Web, OWA, Mac, and Outlook for iOS and Android. With support for a wide range of Outlook apps and platforms, it is the perfect solution for sending emails from any device, including mobile phones and tablets.

ExSign Email Signature support for a wide range of Outlook apps and platforms
Authentication Through Azure

Authentication Through Microsoft

With the ExSign for Microsoft 365 Outlook Edition, administrators can authenticate through Microsoft and log into the application to administer their accounts. Authentication is completely secure as ExSign uses Microsoft’s OAuth 2.0 authorization protocol.

Hybrid Mode

Can work in a hybrid mode. Hybrid mode is a combination of client-side signatures and server-side signatures. For users configured to use server-side stamping, signatures are stamped after an email is sent while for those configured to use client-side stamping, signatures are inserted in the email body.

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ExSign Hybrid Mode Client-side Signatures and Server-side Signatures

Why ExSign for M365 Outlook Edition?


Unlike its server-side counterpart, ExSign for M365 Outlook Edition does not require M365 connectors or mail flow rules to route and process email stamping. It only uses an Outlook web add-in to fetch signatures and update them in Outlook.

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Features

ExSign for Microsoft 365 (Client-Side) is the Outlook Edition for M365. It seamlessly adds signatures directly within the email body as senders compose their messages in Microsoft Outlook. See a list of its features below:

Web Based Tool

Admins can access their client portal anytime through a web browser.

Central Management

Admins can view all the rules and signatures across multiple Microsoft 365 organizations in one place and administer them accordingly.

More Control

Provides users with more control over their email signatures as they can preview signatures before sending email.

Easy Onboarding

Users can easily board the platform by paying online through a credit or debit card.

All Outlook Clients Supported

Works seamlessly with Outlook for Windows Web, OWA, Mac, and Outlook for iOS and Android.

Microsoft Authentication

Administrators can authenticate through Microsoft and log into the application to administer their accounts.

How it Works?

ExSign for M365 Outlook Edition utilizes an Outlook web add-in to add signatures directly into the email body in Microsoft Outlook. The add-in must be added to each Microsoft 365 organization before it appears in the Outlook client. See how it works in a few simple steps below:

See how it works in a few simple steps below:

Email Signatures Integrate With Microsoft 365 Client Side

Frequently Asked Questions

  • 1. Can I try ExSign for Microsoft 365 before buying?

    Yes, you can! A free 30-day trial is available for up to 10 mailboxes. Download here.

  • 2. How is ExSign licensed?

    ExSign for M365 is licensed per mailbox (email address), not per organization. Pricing varies by license category. For more information, contact sales@hostingcontroller.com.

  • 3. What subscription models are available?

    ExSign offers flexible monthly and annual subscription models. Monthly subscriptions are billed monthly and have monthly billing cycles, while annual subscriptions are billed annually and have annual billing cycles.

  • 4. Do I need licenses for all mailboxes in my organization?

    No, only mailboxes that require stamping need to be licensed.

  • 5. What about aliases or shared mailboxes? Do they count?

    Any mailbox that can send email counts towards a license.

  • 6. How do I buy ExSign for M365 licenses?

    Simply contact sales@hostingcontroller.com to make a purchase.

  • 7. Do I need to reinstall ExSign after buying a license?

    Not at all. Just enter your license key to upgrade from trial to full version.

  • 8. How do I activate my license?

    Log in as ExSign Admin, go to System > Activate License, and enter your key.

  • 9. How can I cancel my subscription?

    To cancel your subscription, simply drop a cancellation request at sales@hostingcontroller.com. Our team will get back to you promptly with cancellation steps and further instructions.

  • 10. What is the difference between ExSign Cloud Signatures and ExSign for Microsoft 365 (Partial On-Premises Solution)?

    ExSign Cloud Signatures is a fully cloud-based solution managed by Hosting Controller, requiring no on-premises infrastructure. In contrast, ExSign for Microsoft 365 is a partial on-premises solution that requires at least one physical or virtual machine to host the central web portal/agent. This version is better suited for organizations that require greater control over data and prefer to manage certain components in-house for compliance or data residency purposes.

  • 11. What is the difference between server-side and client-side (Outlook Edition) signatures?

    Server-side signatures are applied after an email is sent and are not visible during the email composition process. In contrast, client-side (Outlook Edition) signatures are inserted directly into the email body as the user composes their message in Outlook, making them visible in real time. See a detailed comparison of the various signature modes here.

  • 12. Can user photos be included in email signatures?

    Yes, user photos can be included in email signatures. To do so, upload the user's photo to Microsoft 365, then insert the {{ThumbnailPhoto}} placeholder into the signature template. The placeholder will automatically populate with the corresponding user's photo in each email.

  • 13. Can ExSign be deployed to only specific users within a Microsoft 365 tenant?

    Yes, ExSign can be deployed to a limited number of users within a Microsoft 365 tenant. To do this, simply create a group within your tenant and add the desired users to it. ExSign will apply email signatures only to members of that designated group.

  • 14. Can users view their signatures while composing an email?

    No, in server-side signatures, a signature is added after an email has been sent; therefore, the sender cannot see the signature while composing an email. However, with the ExSign Sent Items Update feature, users can see signatures in their sent items folder.

  • 15. Can I create different email signatures for each department?

    Yes, you can create distinct email signatures for different departments within your organization. To insert distinct signatures for various departments, create different signature rules: each with Senders in specific Departments.

  • 16. Which email clients and devices are supported?

    ExSign for Microsoft 365 supports all email clients and devices on all OS platforms (including Android and iOS).

  • 17. Do users need to configure anything on their devices for ExSign to work?

    No user-side configuration is required. ExSign works entirely in the background, meaning IT admins manage everything from a central interface while users continue emailing as usual.