Supported phones

Palm OS 5.4

Palm Treo 650
Palm Treo 680
Palm Treo 700p
Palm Treo 755p
Palm Centro

Experience push email and wireless synchronization with Kerio MailServer using the Microsoft Exchange ActiveSync® protocol.

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Push Email with Palm Treo

The latest Palm Treo™ smartphones running Palm OS ship with a Microsoft Exchange ActiveSync® client allowing users to push email and wirelessly synchronize their local contacts and calendars with a back-end server.

Kerio MailServer talks directly to Palm Treo smartphones utilizing the Exchange ActiveSync protocol. There's no need for additional software or service.

System requirements

Push email requires the VersaMail 3.5 email client which ships with Palm Treo 680, Palm Treo 700p and Palm Treo 755p.

You will need to install Exchange ActiveSync (EAS) Update to add Direct Push features to your Palm Treo 680 (Unlocked GSM), Palm Treo 700p and Palm Treo 650.

The Palm VersaMail 3.5 Support page will give you instructions on how to purchase and install VersaMail 3.5 on Palm Treo 650.

Try Exchange ActiveSync with Treo

Make sure you have VersaMail 3.5 installed on your Palm Treo smartphone. In the account setup of VersaMail, choose Exchange ActiveSync as the Mail Service type and enter in your username, password, email address and your Kerio MailServer address.

Learn about Exchange ActiveSync with Treo

Palm provides user guides, instructions, software updates, troubleshooting tips on the Palm VersaMail 3.5 Support page.

You can review our ActiveSync page to learn more about supported features for various mobile phones, smartphones and mobile devices with implemented ActiveSync.

Palm Treo running Windows Mobile

For information on Palm Treo smartphones running Microsoft Windows Mobile operating systems, please go to our Windows Mobile page.

Download the Kerio mobile groupware matrix for an overview of support options.

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I just finished moving my system and data to the new vServer. Thanks for the great support, everything is working really fine so far. And even with 5700 miles between us, it is very fast, you won’t believe it! Downloads are at more than 900 K/s. Thanks for the great support.


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