Community Knowledge Base

SmarterMail Add-ons

SmarterTools' add-on licensing system allows users to enhance the functionality of SmarterTools products. Information about the add-ons available for your installation, purchasing and/or activating add-ons can be found on the Licensing and Activate page of this online help.

The following add-ons are available for SmarterMail:

  • EAS
  • MAPI / EWS
  • Message Sniffer


EAS is a data synchronization protocol that enables over-the-air access to email, calendars, tasks and notes from most mobile devices. In addition, EAS enables SmarterMail users to have access to their email, calendars, tasks, and notes while working offline. Finally, the default applications installed on Windows 10 and above, which include Windows Mail, People, and Calendar, all support EAS for syncing mail, contacts, and calendars.


MAPI provides users with native Microsoft Outlook synchronization and functionality at the server level. Available for Outlook 2016 and above, MAPI offers standard functionality such as syncing emails, calendars, contacts, tasks and notes, but also additional functionlity that is available when connecting Outlook to Microsoft Exchange. This includes advanced features such as delegation, contact groups, etc.

EWS seamlessly syncs SmarterMail messages, contacts, calendars and tasks to third-party email clients, including Apple Mail for MacOS and eM Client for Windows. EWS allows for fast communication between an email client and the mail server and also supports advanced features such as delegation, contact groups, etc.

Message Sniffer

Message Sniffer complements SmarterMail’s built-in antispam functionality and accurately captures more spam, viruses, and malware when combined with SmaterMail's "out of the box" protection. It learns about your environment automatically to optimize its performance and accuracy without your intervention; and it can be easily customized to meet your requirements. Because Message Sniffer runs all of its signatures locally, it doesn’t need to communicate with any services outside of the mail server, making it quicker and more efficient. Furthermore, the database is regularly and automatically updated to protect against new spam and malware attacks.