SendGuard for Outlook
SendGuard for Outlook is an email security add-in for organizations using Microsoft Outlook and Microsoft 365. It helps reduce misdirected messages and accidental disclosure by prompting senders to verify recipients and attachments, highlighting external addresses, and warning before Reply All. Administrators can configure rules for outgoing messages, including checks for sensitive information and actions that prompt, block, or delay sending; higher-tier plans can scan attachment contents. SendGuard supports message delay and cancellation, branding, and logging of user actions. Windows desktop and Microsoft 365 add-in editions support centralized deployment and administration. The Microsoft 365 add-in is available in New Outlook, Outlook on the web, and Outlook for Mac; Outlook mobile support is also offered. It serves professional services, healthcare, finance, and public-sector teams handling sensitive email.
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harmon.ie
harmon.ie brings SharePoint, Teams, and OneDrive into Outlook — turning the inbox from a data silo into a governed, searchable part of Microsoft 365.
- Save emails and attachments to SharePoint or Teams via drag-and-drop or save-on-send.
- Email headers map automatically to SharePoint metadata columns, transforming unstructured email into a searchable, filterable grid without any manual input.
- Search across all Microsoft 365 content from a single bar in Outlook, filtered by location, app, or file type.
- Share files from SharePoint as links or attachments without downloading.
Built for compliance. No data leaves your Microsoft 365 tenant. ISO 27001 certified.
Available as an Outlook add-in plus a standalone desktop app. Deploys centrally. Supports SharePoint Online and on-premises.
Trusted by 1,600+ organizations worldwide, with individual deployments reaching hundred of thousands of users.
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Outlook4Gmail
Outlook4Gmail is an Outlook add-in that helps you to sync Google and Outlook calendars, contacts and tasks. It is a perfect syncing tool for Outlook users who have one or multiple Google accounts. Outlook4Gmail syncs your contacts at the best possible level: name, company, phone number, Email, address, date, note, contact picture, category and Google group, etc. Moreover, Outlook4Gmail provides duplicates elimination function, language settings, automatic backup before the synchronization process. In addition to contacts and calendars syncing, Outlook4Gmail also provides the synchronization of Google tasks with Outlook tasks folders. You could sync multiple Outlook tasks folders and subfolders with Google task lists. Synchronization of Outlook recurrent tasks is also supported.
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PoliteMail
Gain Outlook email intelligence, not overload. To measure and improve internal Outlook email broadcasts to employees, corporate communicators send PoliteMail. PoliteMail Software adds email analytics, responsive HTML design, and list management tools to the enterprise email program you already know how to use, Microsoft Outlook and Exchange. PoliteMail makes it easy to create impressive, highly readable corporate communications, with advanced analytics to enable you to discover the email employees actually read, with key metrics to help you improve results over time. PoliteMail offers the ability to not only compose, design and send – but also provides meaningful metrics that will help you to determine the best strategy for all your internal comms needs and all without leaving the familiar interface of Outlook!
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