About Transend

Transend Corporation, headquartered in the heart of California’s Silicon Valley, provides industry leading solutions to convert, migrate, integrate, archive, review and extend enterprise messaging and collaboration. With corporate offices in Palo Alto, California, and engineering, research and development offices in Washington, Oregon and Florida, Transend has a long-standing history of continuously exceeding customer expectations with leading-edge technology and unparalleled customer support from highly-trained, certified and knowledgeable experts.

Our Story

With 25+ years experience developing solutions for email systems world-wide, Transend offers award winning email migration and conversion solutions that support virtually all email systems. Transend offers multiple variations of solutions focused on industry needs:

  • Transend Migrator — For organizations that need to migrate legacy email data when converting from one email system to another.
  • Transend Migrator Forensic Edition — For legal discovery and compliance organizations that need to convert email data to a format suitable for their eDiscovery and monitoring tools.

Transend’s industry leading software solutions have been used by large and small organizations, as well as individuals, around the world to convert well over 30 million mailboxes between virtually all combinations of email systems. With technology specifically designed for rapid throughput, maintenance of data fidelity, adaptability, migration management and ease of use, Transend’s solutions are used by organizations migrating hundreds of thousands of mailboxes as well as individuals converting a single mailbox

Transend also offers a partner program that brings significant benefits to service organizations looking to migrate their customers’ data. Whether a Managed Service Provider, Value Added Reseller or simply an organization with an on-going need for migration support, Transend’s Partner Program provides state-of-the-art technology, unparalleled support, and significant cost savings that bring value. As the exclusive email migration partner for IBM’s cloud based offering, SmartCloud, and Rackspace Hosting’s Microsoft Exchange and cloud-based email, in addition to close relationships with Microsoft and Google, Transend has vast experience working with some of the largest and most influential service providers in the world.

Transend, The Recognized Industry Leader

logo_WindowsITProTransend Corporation is a recognized leader by industry experts and has won the Windows IT Pro Editors’ Best Award for Best Messaging Product. Transend is a Microsoft Gold Certified Partner with an ISV/Software Solutions Competency and its email migration and conversion solutions are Certified for Windows 7. With business and technology partners located on every continent, Transend is able to satisfy virtually any email migration need from beginning to end. Transend’s list of enterprise customers is unparalleled in the industry and attests to its business philosophy of striving to consistently exceed customer expectations.

Transend Heritage

Transend Corporation has a long heritage in the email market dated back to the birth of email. Transend invented the concept of specialized PC-based email clients in 1983 with a product called PC COMplete™, the first “universal” email client — a concept now incorporated in Microsoft Outlook. Private label versions of PC COMplete were marketed by GE Information Services, AT&T, Pacific Bell, HP, CSC Infonet, BT Tymnet, DEC, BIMCOM Ltd., Teleo S.p.A. and others. In 1993, PC COMplete was nominated by EMMS, a leading email industry publication at the time, for Product of the Decade because of its contribution to the growth of email.

In the early 1990’s Transend began working directly with Microsoft to develop a MAPI-based driver for DEC MAILworks. This project led Transend and Microsoft to work together to develop an email driver for Lotus cc:Mail that would plug into the precursor of Microsoft Outlook. When Microsoft Outlook was released, the Transend cc:Mail driver was bundled and distributed by Microsoft in Microsoft Office and Outlook. Transend later released a portion of that technology as a stand-alone email conversion utility, ConnectorWare Import for cc:Mail, for importing cc:Mail messages and address books into Microsoft Outlook/Exchange.

Transend has unparalleled experience in the development and commercialization of solutions for messaging systems providers worldwide. Perhaps the best indication of Transend’s qualifications is the breadth and quality of its customers. In addition to its current email migration and conversion solutions, Transend has developed custom email software solutions under direct contracts with Microsoft, Digital Equipment, IBM, Apple, Hewlett-Packard, AT&T, Pacific Bell, British Telecom, Kokusai Electric, SARITEL S.p.A, Hong Kong Telecom, Infonet and others. Transend’s extensive experience with email conversion technology and a wide variety of email systems and clients, led to its current industry leading, award winning, email migration and conversion solutions.


Transend is the leading provider of email migration software for all email migration scenarios. Whether you are migrating from Domino to Exchange or Notes to Exchange, Transend can support your email conversion. Transend also supports migrating local data, such as Notes to Outlook or Notes to Office 365. Many customers are migrating email from their old GroupWise platforms, with popular scenarios being GroupWise to Exchange and GroupWise to Office 365. With cloud computing becoming more popular, we’re seeing more common cloud-based email migration scenarios being GroupWise to Office 365, Notes to Office 365 and Domino to Office 365. Google’s messaging platforms are also popular targets, with more customers converting from GroupWise to G Suite, Notes to G Suite and Exchange to G Suite. Transend Migrator is also the leading email converter for file-based email data, supporting popular email conversion scenarios such as OST to PST, NSF to PST and MBOX to PST. For more information, please Contact Us.

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  • Microsoft Gold Partner
  • Lotus Business Partner

Note: Transend Migrator does not support Outlook 2013 OST files. However, 2010 and prior versions of Outlook OST files are supported.

All versions of Outlook PST are supported.