MailBee.NET Objects v12.2 with Office 365 OAuth 2.0 samples

Monday, 14 September 2020

We've just released MailBee.NET Objects v12.2, which now includes desktop and ASP.NET Core samples and tutorials which demonstrate how to enable OAuth 2.0 for IMAP and SMTP in Office 365 applications. As Microsoft is discontinuing Basic authentication support in Office 365 soon, it's crucial for your apps to migrate to the modern authentication.

Other changes include improvements of Outlook .MSG conversion, S/MIME verification of attached signatures, and ESMTP CRAM-MD5 authentication.

This version will work with your existing v12 license key (MN120 format). If you're on an older version (v11 or earlier), be sure to obtain a new license key before upgrading. Please contact us at for details.

In case if your maintenance contract has already expired, you'll need to renew it first. This can be done at (or just drop us a message if your key is not recognized).

To download the new version, visit

Have questions? Please feel free to contact us at

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