World's #1 Microsoft 365 email signature management software
CodeTwo
Email Signatures 365

How does the program work?
CodeTwo Email Signatures 365 is a cloud-based solution developed to help administrators centrally manage email signatures and disclaimers in Office 365 (Microsoft 365). The software offers an all-web experience, meaning that you can create and manage signature templates as well as signature rules that specify which users or user groups get access to individual signature templates from anywhere and on any device or platform (including Windows, Mac, mobile phones, tablets, and so on).
Signature modes
Signatures can be added in different ways, depending on the signature mode in which the software operates: server-side, client-side or combo. Signature mode is first selected when you register your Office 365 tenant to our service but can be later changed at any time.
Server-side mode
Works with all email clients. A signature is added after an email is sent (but you can deploy a web add-in to preview a signature as you type an email in Outlook, OWA and Outlook for Mac). Requires setup of Office 365 connectors. Does not require deployment of CodeTwo Signatures Web Add-in for Outlook.
Client-side mode
Works with Outlook for Windows, Outlook for Mac and OWA. A signature is added as you type an email. Does not require setup of Office 365 connectors (your emails do not go through CodeTwo services). Requires deployment of CodeTwo Signatures Web Add-in for Outlook.
Combo mode
Works with all email clients. It's a combination of server-side and client-side modes. A signature is added as you type an email in Outlook. If you use other email clients, a signature is added after an email is sent. Requires setup of Office 365 connectors and deployment of CodeTwo Signatures Web Add-in for Outlook.
18 datacenters in 9 regions
The CodeTwo services responsible for adding signatures to your emails are hosted in 18 datacenters across 9 worldwide Azure regions. As the application lets you select a preferred region, it helps you stay GDPR, CCPA and HIPAA compliant. The following Azure regions are available: West US, North Central US, Canada East, North Europe, UK South, Germany West Central*, West Europe, Australia East and UAE North. Each datacenter and region is constantly monitored by our team. You can view the status of our services at status.codetwo.com.
* CodeTwo Email Signatures 365 is the only Microsoft 365 signature management software with the Germany region.
Hybrid environments
CodeTwo email signature management products support Office 365 hybrid environments. The choice whether to use CodeTwo Email Signatures 365 or one of our desktop applications depends on your hybrid environment configuration. If you’re not sure which product to choose, please contact us.
Other environments
Still not sure which CodeTwo software is best for you? Check out our solutions for Microsoft 365 and on-premises Exchange and see how they compare with native Exchange capabilities.
