Best Online Fax Services for Microsoft Outlook

Find and compare the best Online Fax services for Microsoft Outlook in 2025

Use the comparison tool below to compare the top Online Fax services for Microsoft Outlook on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    ClickSend Reviews
    Top Pick

    ClickSend

    ClickSend

    $20 minimum topup
    73 Ratings
    ClickSend offers SMS, MMS, Voice, Online Mail, Email and Fax software for businesses. Our communications and messaging tools are simple to use, automate and integrate. That’s why they’re used by some of the most trusted brands, organisations and developers globally. Built for all, you can access ClickSend via our Dashboard, mobile app, flexible API or 900+ integrations. Plus, ClickSend offers helpful 24/7 support, and lightning fast delivery via a secure and reliable platform. From SMS marketing and alerts to bulk mailouts sent from your browser, join over 90,000+ businesses sending communications around the world. Our 100% uptime guarantee and lightning fast direct routes provide reliable messaging, no matter the channel. From small businesses to enterprise, ClickSend powers billions of messages around the world with 232+ direct carrier connections. Plus, ClickSend is always pay-as-you-go. That’s why ClickSend is business communications, solved.
  • 2
    SignEasy Reviews
    Signeasy is now part of the Recommended Google Workspace Apps, a select group of market-leading third party applications that help Google Workspace customers work together and get more done. You can find the Recommended for Google Workspace label to see which Google Workspace Marketplace apps have been rated more secure, reliable, or well-integrated with Google Workspace services. Signeasy API is designed for developers who want to integrate eSignature capabilities in their core workflows. With our easy-to integrate API platform, you can quickly create custom eSignature workflows on your site or application. Signeasy also integrates with popular productivity tools such as Microsoft Teams, Google Workspace, Microsoft Teams, Outlook and many others, allowing developers to create end-to-end workflows. Signeasy's rich API endpoints allow you to have complete control over the eSignature of your documents.
  • 3
    Upland InterFAX Reviews

    Upland InterFAX

    Upland Software

    $9.95 per month
    InterFAX offers scalable, cloud-based, HIPAA- and PCI-DSS-compliant fax solutions to businesses of all sizes. This service is great for remote workers and multi-office workers. Users can securely access the Control Panel via any internet-enabled device. Comprehensive audit trails, automatic deletion of faxes upon delivery, enterprise user administration, and an integrated faxing platform/API that allows for automatic fax removal are some of the features. On request, a Business Associate Agreement (BAA), is available.
  • 4
    XM Fax Reviews
    The industry-leading XMFax® solutions suite allows companies to receive faxes directly to email. This increases security and efficiency, eliminates copper phone lines, and allows them to send faxes from computers or MFPs. XM Fax increases productivity, reduces costs and helps organizations comply to regulatory requirements. Software-only IP Fax Server Solution - No fax boards required. Eliminate the need for analog phone lines. Eliminate legacy fax hardware's maintenance, consumable and repair costs. Lowest cost routing. Compliance with regulations such HIPAA, GDPR SOX, FERPA, SOX, SOX, SOX, SOX, and SOX. Zero retention feature. Advanced traceability is possible by using the event log. ISO/IEC 27001 :2013 and PCI DSS compliant Cloud Services. As easy-to-use as email. Outlook add-ons and Exchange integration. Full range of MFP connectors. Mobile applications (phone and tablet). Available in Cloud, On-Premises, and hybrid deployments. Three application-optimized editions to choose from.
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