Email Signature Manager is designed for On-Premises Exchange Server.
The following versions are the only versions that work with Microsoft 365 with limited support:
- Email Signature Manager 10.1.0
- Email Signature Manager Agent 4.4.0
Important notice regarding Microsoft 365 support in Email Signature Manager: It is no longer feasible for Symprex to continue support for Microsoft 365 in Email Signature Manager due to changes Microsoft has planned for Outlook, Exchange Online, APIs and security improvements. Support for using Email Signature Manager with Microsoft 365 will end on 31st December 2025. Please contact Symprex Sales for your options to upgrade to Signature 365.
Supported versions of Email Signature Manager are:
- Version 11.X - end of support to be confirmed
- Version 10.X - end of support October 22, 2029
- Version 9.X - end of support September 20, 2026
Supported versions of Email Signature Manager Agent are:
- Version 5.X - end of support to be confirmed
- Version 4.X - end of support September 20, 2026
Versions older than those listed above are no longer supported.
If your license is under active maintenance, you can upgrade to the latest version at no charge.