ExSign Cloud Signatures For Microsoft 365


Ensure uniform email signatures across your
organization with our cloud service.

No Servers, No Costly Certificates, No Maintenance.

Free Trial

(14-day free trial)

  1. Home
  2. Products
  3. ExSign Cloud Signatures
Documentation Client-Side Signatures

Cloud Signatures for Microsoft 365

ExSign Cloud Signatures is a powerful cloud service that enables you to apply professional and consistent signatures seamlessly across your Microsoft 365 organization.

Exchange Email Signatures

Choose Your Environment

Pick a preferred cloud service and onboard in a few simple steps.

Cloud Signatures for Microsoft 365 (Server-Side)

Cloud Signatures for Microsoft 365 (Server-Side)

Give your IT teams more control over signatures. Apply signatures after emails have been sent giving administrators more control over email signatures.

Book a Demo
Cloud Signatures for Microsoft 365 (Client-Side)

Cloud Signatures for Microsoft 365 (Client-Side)

Allow end users to see their signatures while they type. Enable senders to see their signatures while they compose emails giving them a full preview of their signatures before they send emails.

Book a Demo
Cloud Signatures for Microsoft 365

Hybrid Mode

Offer your organizations both server-side and client-side signatures. Enable your Microsoft 365 organizations to enjoy the best of both worlds. Some members of the Microsoft 365 tenant can utilize server-side signatures while others benefit from client-side signatures.

Book a Demo

No Infrastructure Required

Avail Our Cloud Service

No need to invest in costly physical infrastructure. Onboard our cloud service and start creating engaging signatures for your company.

  • No Servers
  • No Certificates
  • No Maintenance
    • No Infrastructure Required
    See Email Signatures While Typing Added Directly to Outlook

    See Signatures While Typing

    Added Directly to Outlook

    Insert email signatures directly into the message body as you compose your email in Outlook. Embed professionally formatted signatures seamlessly, saving time while maintaining brand consistency. Perfect for dynamic, error-free emails drafted on the fly.

    All Email Clients & Devices Supported

    Including Android and iOS

    Enjoy full compatibility across all email clients and devices, including Android and iOS. Send emails with embedded signatures whether from desktops, tablets, or smartphones—with effortless cross-platform support.

    All Email Clients & Devices Supported Signatures
    Professional Branding with Every Email

    Banners, Logos, and Social Media Icons

    Every Email a Marketing Opportunity

    Enhance your brand visibility with banners, crisp logos, and interactive social media icons built into your email signature. Convert every message into a valuable marketing touchpoint—showcasing your business, building credibility, and encouraging engagement. All this happens automatically—effortless professional branding with every email you send.

    Get Started with ExSign Cloud Signatures

    Schedule a Demo

    Features

    ExSign Cloud Service for Microsoft 365 is an ideal email signature solution for Microsoft 365. See the list of features below:

    Cloud-based Architecture

    ExSign M365 cloud-based architecture provides secure, scalable email signature management without requiring on-premises infrastructure.

    Central Management

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

    Installation

    No local installs required. Everything is managed in the ExSign cloud.

    Microsoft Authentication

    ExSign cloud service utilizes OAuth authentication for sign-in using Microsoft’s OAuth 2.0 authorization protocol for secure access.

    Hybrid Mode

    Use both server-side and client-side signatures. Server-side stamps after sending; client-side stamps while typing.

    Banner Management

    Display banners with email signatures, set run times, and auto-remove or update them as needed.

    Ready-Made Templates

    Use pre-built signature templates to align signatures with your company’s corporate identity—no design needed.

    Rich Editor

    Define signatures using a rich HTML editor with support for HTML, RTF, and plain text formats.

    ExSign Email Signatures M365

    Bigger Bundles, Better Savings
    $1.07 per User/Month
    $53.50
    You're saving 0.93%
    Free 14-day Trial

    FAQ

    Frequently Asked Questions

    Purchase

    expand all collapse all
    • 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.

    Functional

    expand all collapse all
    • 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.