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Signature 365

symprex.com

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Spec score 8.0 #21 of 41 in Email Signature Management Software

What it is

Signature 365 is a cloud-based service for managing email signatures, marketing campaigns and legal disclaimers for Microsoft 365 and Office 365. Its central dashboard lets organizations manage signatures and assign versions by department or individual. Templates can include branding, directory contact details, headshots, social links, banners, calls to action and disclaimers. Signatures can be deployed client-side, server-side or through both modes. Symprex says the service can add signatures to email sent from any client or device, with sent items updated, and that 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 report on traffic, conversions and sales opportunities. The service supports directory sync and automatic updates. It is paid, with no free plan and a 14-day trial that requires no commitment or credit card. A license is assigned to each user or shared mailbox routed through the service and to each user using the Outlook add-in.

Spec sheet

Purpose
Signature 365 manages email signatures, marketing campaigns, and legal disclaimers for Microsoft 365 and Office 365.Read 8 Oct 2026 · symprex.com
Product
Signature 365 is a cloud-based email signature solution for Microsoft 365 and Office 365.Read 9 Oct 2026 · symprex.com
Deployment
The setup process uses a wizard, and the Outlook add-in can be deployed from the Microsoft 365 admin center without agents.Read 9 Oct 2026 · symprex.com
Trial
The product offers a 14-day free trial with no commitment or credit card required.Read 9 Oct 2026 · symprex.com
Security
Symprex says its ISMS is ISO 27001 and ISO 27018 certified and that it is SOC 2 Type II certified.Read 9 Oct 2026 · symprex.com
Compliance
The security page lists GDPR, CCPA, HIPAA, and PCI compliance.Read 9 Oct 2026 · symprex.com
Support
Technical support is included, with email and phone support listed as available 8 AM to 8 PM UK time, five days a week, and a 24-hour response-time guarantee.Read 9 Oct 2026 · symprex.com
Headquarters
Guildford, United KingdomRead 28 Sep 2026 · symprex.com
Administration
A central dashboard lets organizations manage signatures and assign different versions by department or individual.Read 9 Oct 2026 · symprex.com
Analytics
The product tracks interactions and provides reporting on traffic, conversions, and sales opportunities.Read 9 Oct 2026 · symprex.com
Campaign analytics
The product tracks interactions and provides real-time insights and reports on signature campaign performance.Read 8 Oct 2026 · symprex.com
Central management
A central dashboard lets organizations create, manage, and update signatures across their teams.Read 8 Oct 2026 · symprex.com
Core use
It centrally manages and deploys email signatures, marketing campaigns, and legal disclaimers.Read 9 Oct 2026 · symprex.com
Deployment modes
Signatures can be added client-side, server-side, or through a combination of both modes.Read 8 Oct 2026 · symprex.com
Design and personalization
Users can customize templates with branding, headshots, contact details, social links, banners, calls to action, and disclaimers.Read 9 Oct 2026 · symprex.com
Email access
Symprex says it does not access email content, including when server-side signatures are used.Read 9 Oct 2026 · symprex.com
Email client compatibility
Symprex says signatures can be added to email sent from any client on any device, with sent items updated accordingly.Read 8 Oct 2026 · symprex.com
Email clients
Symprex says signatures can be added to email from any client and device, with sent items updated accordingly.Read 9 Oct 2026 · symprex.com
Intended customers
The product page describes Signature 365 as serving businesses ranging from 50 to 5,000 users.Read 8 Oct 2026 · symprex.com
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.Read 9 Oct 2026 · symprex.com
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.Read 8 Oct 2026 · symprex.com
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.Read 8 Oct 2026 · symprex.com
Personalization
Signatures can include directory contact details, headshots, social links, banners, calls to action, and disclaimers.Read 8 Oct 2026 · symprex.com
Regional data
The product features page says regional infrastructure keeps customer data within the customer's region.Read 8 Oct 2026 · symprex.com
Scale
Symprex says its largest customers use Signature 365 to manage over 80,000 users.Read 9 Oct 2026 · symprex.com
Security certifications
Symprex says its services are ISO 27001 and ISO 27018 certified and SOC 2 Type II compliant and certified.Read 8 Oct 2026 · symprex.com

Strong points and limits

Strong points

  • Central dashboard assigns signatures by department or individual
  • Supports client-side and server-side deployment
  • Campaign analytics report on traffic and conversions
  • Symprex says it does not access email content
  • 14-day trial requires no commitment or credit card

Limits

  • No free plan
  • Trial lasts 14 days
  • Licenses count users and shared mailboxes routed through the service
  • Licenses also count Outlook add-in users

Who it suits

Signature 365 suits organizations using Microsoft 365 that need centrally managed signatures, disclaimers or campaigns. Symprex describes it for businesses with 50 to 5,000 users, while its largest customers manage more than 80,000 users.

Verdict

Signature 365 offers centralized control over signatures and campaigns across Microsoft 365, with multiple deployment options and analytics. Buyers should account for the per-user and shared-mailbox license rules when estimating access needs.

Where Specifiction places it

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