Rebex Graph

.NET client library for MS Graph API (Exchange Online)

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Each developer working on an application that uses the Rebex library needs one license.

The license is permanent. When your Support Contract expires, you can continue using the library. However, you will lose access to new versions and technical support.

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    • S/MIME
    • IMAP and POP3 client
    • SMTP client
    • EWS client
    • Graph client
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(best value)

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Single component or pack? Compare features:

Feature Graph Secure Mail Total Pack
Graph - Graph library
Mail - SMTP/SSL client library
Mail - POP3/SSL client library
Mail - MIME and S/MIME library
Mail - IMAP/SSL client library
Mail - EWS (Exchange Web Service) client library
FTP - FTP and FTP/SSL client library
ZIP - ZIP compression library
WebSocket - WebSocket client library
TLS - TLS client and server library
Time - NTP/SNTP/TIME/DAYTIME client library
Syslog - Syslog logging library
SSH Shell - Terminal emulation WinForms control
SSH Shell - SSH and Telnet Virtual Terminal client library
SFTP - SFTP and SCP client library
Security - Encryption, signing and other security-related stuff
MSG - MSG library
HTTPS - HTTP and HTTPS client library
File Server - SSH server library
File Server - SFTP server library

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Volume discounts

Multi - User discounts are as follows:

2–4 licenses: 10 % discount
5–9 licenses: 15 % discount
10–24 licenses: 20 % discount

If you want to buy more licenses or ask about pricing, please contact


Every Rebex component comes with 12 months of updates and support.The component license is valid forever. However, to continue receiving updates and support after the first year you have to renew your Support Contract.

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Renewal prices

Rebex Graph$99
Rebex Secure Mail$149
Rebex Total Pack$599

Prices per 1 developer, valid as of 2024-07-18. Can change without notice.

Free licenses

We offer free personal Rebex Total Pack licenses to Microsoft MVPs, popular bloggers, user group leaders, and authors.

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Money back guarantee

If you are not completely happy with our product we don't want your money. You can return your product within 90 days after the purchase by contacting


Need to add more licenses? Want to change from individual component to component pack? Interested in competitive upgrade?

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Quotes and purchase orders

Request quote or send us your purchase order to Please allow 1 or 2 business days for processing. When the PO is accepted we'll activate the product and send you an invoice with NET-30 payment terms.

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