Outlook Add-in 3.4.0 Release Notes

New features and enhancements

Axway Outlook Add-in 3.4.0 adds the following new features and enhancements to the Outlook Add-in:

General

  • Axway Outlook Add-in now supports Microsoft .NET Framework version 4.5 or above.
  • Kerberos Single Sign-on (SSO) authentication is now supported.
  • Can connect to supported SecureTransport servers over TLS 1.2 security protocol.
  • Localization is supported. For more information on localizing Outlook Add-in, contact Axway Support at support.axway.com.
  • The following versions of SecureTransport are supported:
    • SecureTransport 5.3.1
    • SecureTransport 5.3.3
    • SecureTransport 5.3.5
    • SecureTransport 5.3.6

Known issues

  • Axway Outlook Add-in now connects by default only over TLS 1.2.
  • RTF email format is not supported.
  • The Axway Outlook Add-in save to draft scenarios and limitations based on the different attachment mechanisms and server configurations:
    • The total of size of the attachments is less than the AdHoc minimum file size:
      • Files are attached using Attach Large File (Not supported) - The attachments are blocked and sent as normal attachments that can not be opened when received. Draft save and re-open is not supported in this scenario.
      • Files are attached using Attach File or drag and drop (Not applicable) - The attachments are sent as normal attachments.
      • Files are attached using Attach Large File and using Attach File or drag and drop (Not applicable) - The files attached using Attach File or drag and drop are sent as normal attachments. The files attached using Attach Large File are blocked.
    • The total size of the attachments is between the AdHoc minimum file size and maximum file size:
      • Files are attached using Attach Large File (Not supported) - The attachments are blocked and sent as normal attachments that can not be opened when received. Draft save and re-open is not supported in this scenario.
      • Files are attached using Attach File or drag and drop (Supported) - The attachments are sent through the Axway Outlook Add-in. Draft save and re-open is supported in this scenario.
      • Files are attached using Attach Large File and using Attach File or drag and drop (Partially supported) - The files attached using Attach Large File are blocked and sent as normal attachments that can not be opened when received. The files attached using Attach File or drag and drop are sent through the Axway Outlook Add-in. Draft save and re-open is partially supported in this scenario.
  • S/MIME support limitations: Because of the way Outlook Add-in intercepts the outgoing emails and the need to add the Axway attachments download links in the email body after the user clicks Send, the following security-related limitations are present in the current release.
    • You must specify your private key password twice when sending signed emails with Axway Attachments: If your private key is protected by a password when sending signed emails with Axway attachments, the dialog box that asks the user to specify the private key password might be displayed two times; once after clicking the Send button, and again when the Outlook Add-in modifies the email body and sends the email in the Outbox folder for sending. To ensure successful email processing you must type the correct private key password in both dialogs.
    • Signed and encrypted email messages can be modified while attachments are uploading: When you send a signed or encrypted email with Axway attachments, the raw email (not encrypted, not signed) is stored on the local file system until all Axway attachments are uploaded on the Axway server. In this limited time frame, a user with Administrative privileges can modify the email while it is stored unencrypted and unsigned. In this situation, the email will be signed or encrypted once the Axway Attachment Download Links are added to the modified body, and the recipients will receive the modified version of the email.
    • The custom MIME headers are not protected by signature nor encryption: In addition to modifying the email body (to add the Axway Attachments Download Links), the Outlook Add-in also adds the same information as custom MIME headers. These headers are not protected by the email signature and are not encrypted. Therefore, in theory these headers can be modified by an attacker. When the email is received by a user who has Outlook Add-in installed, this modified information will be used to populate the Axway Side Panel, resulting in the recipient downloading potentially harmful content. However, the Axway attachment download links are part of the email body and are protected by the email signature so any modification will cause a signature failure on the recipient side.
  • When sending signed or encrypted email, the Axway Attachments are uploaded and stored on the remote Axway server unencrypted.
  • Client Certificate Authentication is not supported when Outlook Add-in is used with SecureTransport.
  • If you are using Outlook Add-in with Outlook 2010 and Microsoft exchange server 2010 (or newer) and you add attachments, you can safely disregard the Mail Tips listed below if you should see them. Attachments will be offloaded to the Axway server.
    • MailTip: Message too large for recipient – “This e-mail message cannot be sent because it exceeds the XXXMB outgoing message size limit.”
    • MailTip: Message too large to send – “This e-mail message cannot be accepted by the mailbox for USERNAME because it is too large.”
  • Intercepted email attachment notification errors are not displayed when intercepted attachments are sent using Outlook 2016 in the Microsoft Windows 10 (prior to anniversary release) environment.

Documentation

This section describes documentation enhancements and related documentation.

Documentation enhancements

The Axway Outlook Add-in documents have been updated to include information on the new features and enhancements listed in these release notes.

Related documentation

The following documents also provide useful information relating to Outlook Add-In:

  • Axway Outlook Add-in Installation Guide
  • Axway Outlook Add-in User Guide

Support services

The Axway Global Support team provides worldwide 24 x 7 support for customers with active support agreements.
Email support@axway.com or visit Axway Support at https://support.axway.com.

Copyright © 2017 Axway. All rights reserved

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