AdSigner vs Signature 365

AdSigner centrally manages employee email signatures and can deploy them across an organization. It supports distinct branded signatures for departments, roles, regions, locations, or company brands. Campaign banners can carry offers, events, content, or company news in employee emails. Analytics tracks signature and campaign views, clicks, and click-through rates, with reports exportable to Excel, CSV, or JSON. Employee directory data can be synced from Microsoft Entra ID or Google Directory, supplied through JSON endpoints or custom API sources, or imported from Excel, CSV, or JSON files. Deployment options include Microsoft 365 and Outlook add-ins, Google Workspace and Gmail add-ons, AdSigner Agent for Outlook or Thunderbird, HTML copy-and-paste, and API-based deployment. AdSigner says it processes directory data and signature configuration to generate signatures without routing or accessing email content. Its security page states that it is GDPR compliant, offers a Data Processing Agreement, and has an SSL certificate. Administrators can enforce disclaimers and restrict compliance settings through role-based permissions. Standard support is included with subscriptions, with email or chat responses within 24 business hours. The platform lists API, extension, web, and Windows.

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.