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Signature 365

Signature 365 is a cloud-based email signature service for Microsoft 365 and Office 365.

Place
#20 of 41
Score
6.9
Signature 365's website

What Signature 365 is

Signature 365 is a cloud-based email signature service for Microsoft 365 and Office 365. Its central dashboard lets organizations create and maintain signatures, assign versions by department or individual, and manage campaigns and legal disclaimers. Templates can include company branding, directory contact details, headshots, social links, banners, calls to action, and disclaimers. Signatures can be deployed client-side, server-side, or using both methods. Symprex says the service can add signatures to email sent from any client or device and update sent items; it also says it does not access email content, including with server-side signatures. An Outlook add-in can be deployed through the Microsoft 365 admin center, and signatures can be added in Outlook on mobile devices. Campaign analytics track interactions and provide reporting on traffic, conversions, and sales opportunities. The service supports directory sync and automatic updates. Symprex describes customers ranging from 50 to 5,000 users and says its largest customers manage more than 80,000 users. Signature 365 is paid, with a 14-day trial that requires no commitment or credit card.

Good

  • Central dashboard manages signatures across teams.
  • Templates support branding and personalized details.
  • Deployment can be client-side, server-side, or combined.
  • Analytics report on traffic, conversions, and sales opportunities.
  • 14-day trial requires no commitment or credit card.

Watch out

  • There is no free plan.
  • Licenses apply to users and shared mailboxes routed through the service.
  • Licenses also apply to Outlook add-in users.
  • Technical support hours are 8 AM to 8 PM UK time, five days weekly.

Who it suits

Signature 365 suits organizations using Microsoft 365 that want centrally managed email signatures, campaign analytics, and legal disclaimers. Its listed customer range includes businesses with 50 to 5,000 users.

Verdict

Signature 365 centralizes signature management and provides options for deployment, personalization, and campaign reporting. Organizations should review how its per-user and shared-mailbox licensing applies to their setup before starting the trial.

The facts

Each one read from Signature 365's own pages, with the date it was checked.

What it does

Administration
A central dashboard lets organizations manage signatures and assign different versions by department or individual.checked 9 Oct 2026
Analytics
The product tracks interactions and provides reporting on traffic, conversions, and sales opportunities.checked 9 Oct 2026
Campaign analytics
The product tracks interactions and provides real-time insights and reports on signature campaign performance.checked 8 Oct 2026
Central management
A central dashboard lets organizations create, manage, and update signatures across their teams.checked 8 Oct 2026
Compliance
The security page lists GDPR, CCPA, HIPAA, and PCI compliance.checked 9 Oct 2026
Core use
It centrally manages and deploys email signatures, marketing campaigns, and legal disclaimers.checked 9 Oct 2026
Deployment
The setup process uses a wizard, and the Outlook add-in can be deployed from the Microsoft 365 admin center without agents.checked 9 Oct 2026
Deployment modes
Signatures can be added client-side, server-side, or through a combination of both modes.checked 8 Oct 2026
Design and personalization
Users can customize templates with branding, headshots, contact details, social links, banners, calls to action, and disclaimers.checked 9 Oct 2026
Email access
Symprex says it does not access email content, including when server-side signatures are used.checked 9 Oct 2026
Email client compatibility
Symprex says signatures can be added to email sent from any client on any device, with sent items updated accordingly.checked 8 Oct 2026
Email clients
Symprex says signatures can be added to email from any client and device, with sent items updated accordingly.checked 9 Oct 2026
Intended customers
The product page describes Signature 365 as serving businesses ranging from 50 to 5,000 users.checked 8 Oct 2026
License counting
A license is assigned to each user and shared mailbox routed through the service and to each user with the Outlook add-in, whether or not a signature is added.checked 9 Oct 2026
Licensing limit
A license is assigned to each user or shared mailbox routed through the service and to each user who uses the Outlook add-in.checked 8 Oct 2026
Outlook integration
The Outlook add-in can be deployed from the Microsoft 365 admin center, and signatures can be added in Outlook on mobile devices.checked 8 Oct 2026
Personalization
Signatures can include directory contact details, headshots, social links, banners, calls to action, and disclaimers.checked 8 Oct 2026
Product
Signature 365 is a cloud-based email signature solution for Microsoft 365 and Office 365.checked 9 Oct 2026
Purpose
Signature 365 manages email signatures, marketing campaigns, and legal disclaimers for Microsoft 365 and Office 365.checked 8 Oct 2026
Regional data
The product features page says regional infrastructure keeps customer data within the customer's region.checked 8 Oct 2026
Scale
Symprex says its largest customers use Signature 365 to manage over 80,000 users.checked 9 Oct 2026
Security
Symprex says its ISMS is ISO 27001 and ISO 27018 certified and that it is SOC 2 Type II certified.checked 9 Oct 2026
Security certifications
Symprex says its services are ISO 27001 and ISO 27018 certified and SOC 2 Type II compliant and certified.checked 8 Oct 2026

The company

Headquarters
Guildford, United Kingdomchecked 28 Sep 2026

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