OWA Release Notes

Introduction

This document describes chronological changes introduced in the Zivver Outlook Web Access Add-in v6. The version numbers follow our internal version numbers, which are shared with our other clients. That’s why they show as 3.x.x. Please see the upgrade manual for more details on how to perform the upgrade to v6.

3.249.2-owa.6

July 1st, 2026

• Fixed an issue where invalid "-" recipients could automatically and repeatedly be added to the CC field of an open message, which could cause sending to fail.
• Fixed an issue where the notification bar could show an outdated warning after replying to a message.

3.249.0

April 21st, 2026

• Added logic to be able to switch between the Zivver OWA add-in V6 and the upcoming Zivver OWA add-in V7, to be able to test the new version with a subset of users before rolling it out to the entire organization.

3.248.0

March 20th, 2026

• Fixed an issue where replying or replying all to Zivver messages from a shared mailbox added the noreply@zivver.com address to the To field in New Outlook and Outlook on the web.
• Fixed an issue where the Dutch add-in displayed client violation warnings in English.
• Internal optimizations and stability improvements.

3.247.5

March 4th, 2026

• Improved logging during the send flow to assist in troubleshooting.
• Enhanced monitoring in the Zivver OWA add-in by adding additional tracking.

3.247.1

February 23rd, 2026

• Improved the Send flow so that users now see the Send dialog and progress feedback even when attachments are still uploading.

3.245.0

January 22nd, 2026

• Performance improvements.

3.244.1-patch.0

January 16th, 2026

• Added support for opening Zivver messages that were received before a Zivver account was created.
• Fixed an issue where users were unable to remove attachments from the Zivver task pane.
• Performance improvements and internal optimizations.

3.239.0

November 7th, 2025

• Added support for the new inline image representation Microsoft is rolling out in OWA.
• Fixed an issue where users could not reply to secure messages, due to a warning about the noreply@zivver.com address.
• Enhanced product quality through internal optimizations.

3.237.2

October 20th, 2025

• Added a notification in the read and compose pane when the Zivver backend API is not reachable.
• Improved the cache management policy.
• Enhanced product quality through internal optimizations.

3.231.1

September 18th, 2025

• Fixed an issue where inline images from the signature failed to upload to Zivver.
• Fixed an issue where the Zivver notification email was included in a secure reply.
• Fixed an issue where the notification about changed recipients didn't disappear after changing the recipients back to the original recipients.

3.227.0

August 19th, 2025

• Added improvements for changing the verification method for a participant in a conversation.
• Added the option to send a message without encryption when the connection to the Zivver backend API is unavailable.
• Added the option to reply only to the sender.
• Added the function to show CC recipients of Zivver messages.
• Fixed an issue with the Secure Send button for the French language.
• Fixed an issue with the Revoke options for the French language.
• Added support to reply to CC recipients in the CC (instead of in the To).
• Fixed an issue where no notification was shown when the Zivver backend API auth endpoints are not accessible.
• Added a notification and sending blockade when replying to or forwarding a secure message while the Zivver backend API is unavailable.
• Fixed an issue where sending a message was stuck after the Recipient Verification setup window was closed without setting up a Recipient Verification.

3.223.2-patch.0

August 4th, 2025

• When the Zivver backend API is not available, we will now show a notification to the user with an explanation of the issue.
• Improved the verification cards.
• Support the French language in the Zivver OWA add-in.
• Corrected the text for the "Revoke now" button.
• Fixed a visual issue where a background image was displayed outside of the assigned area for non-English languages.
• Made some improvements in the background to make maintenance of the code easier.

3.219.0

June 26th, 2025

• Added accessibility improvements to the Zivver OWA add-in.
• Fixed an issue where attachments were not correctly removed from the Zivver Attachments when the attachments were removed from the OWA interface.
• Cleaned up the code to improve performance and stability.
• Fixed an issue where the revoke period was automatically set to the default when opening the revoke settings again after changing the revoke period.
• Fixed an issue where logging in with SSO was not working for users where the UPN was not the same as the primary email address.
• Fixed an issue where the attachments were placed at the end of the scrollbar in the Zivver Task Pane, requiring users to scroll down to see the attachments.

3.217.3-patch.0

June 23rd, 2025

• Fixed an issue where logging in with SSO was not working for users where the UPN was not the same as the primary email address.

3.217.2

June 2nd, 2025

• Fixed an issue where the resolve action "Remove files" resulted in an error stating the files could not be removed.
• Fixed an issue where a scheduled revocation was displayed as "will be revoked immediately" in the Zivver OWA add-in, even though the revocation was scheduled for a later time.
• Fixed an issue where the Zivver side pane could become inaccessible after a timeout, resulting in users being unable to send messages both securely and unsecurely.
• Fixed an issue where a "remove" button was displayed for inline images in the Zivver OWA add-in, even though inline images cannot be removed.

3.212.4-patch.0

May 7th, 2025

• Fixed an issue where the default noreply@zivver.com recipient for replies to secure messages was not replaced with the original recipients of the conversation.
• Added support for French notification messages. You can now select French as the recipient's language in the Zivver OWA add-in.
• Fixed an issue where sending both regular and secure messages could be blocked due to a timeout error.

3.211.4

April 25th, 2025

• Fixed an issue where the Revoke access functionality was not working correctly.

3.210.2

April 7th, 2025

• Improved the language selector to show the languages in the users own language.
• Fixed an issue where removing an attachment uploaded via the Zivver taskpane, and re-uploading the same file, didn't upload the file to Zivver again.
• Fixed an issue where the formatting of tables were not correctly displayed in the Zivver OWA add-in or Zivver Guest environment for messages sent using the Zivver OWA add-in.
• Fixed an issue where the formatting of tables were not correctly displayed in the Zivver OWA add-in or Zivver Guest environment for messages sent using the Zivver WebApp.
• Fixed an issue where the recipients of a reply to a regular email conversation were replaced by the recipients of a previous Zivver conversation.
• Improvements to the RichText Editor.

3.203.1-patch.0

March 13th, 2025

• Fixed an issue where the recipients of a reply to a regular email conversation were replaced by the recipients of a previous Zivver conversation.

3.203.0

February 14th, 2025

• Fixed an UI issue in the recipients verification dialog, where not all methods were displayed correctly in the list.
• Fixed an issue where exempted domains did not work if the recipient's email address contained uppercase letters.
• Fixed an issue where capital letters in the email address of a recipient did not trigger the Recipient Verification dialog, but automatically applied the verification email as the verification method.
• Implemented a workaround for a Microsoft issue (GitHub Issue #5345) where certain secure reply/forward scenarios could result in incomplete messages.

v3.198.4

January 29th, 2025

• Fixed an issue where the Recipient Verification screen did not open if the recipient email address contained uppercase letters.
• Fixed an issue where saving an empty access code was not highlighted.
• Small improvements to our code.

v3.195.0

January 13th, 2025

• Fixed an issue where the some tooltip labels showed the definition of the label, instead of the value of the label.
• Small improvement to our code.

3.194.0

January 9th, 2025

• Fixed an issue where large whitespaces were displayed between line breaks for messages that were sent via the Zivver SMTP server.
• Fixed an issue where a new account could not open messages received before there was an account.
• Small improvement to our code.

3.193.0

December 31st, 2024

• Small improvements in the code, to make the add-in more stable.
• Fixed an issue where log events were sent to an incorrect URL.

3.189.2-patch.0

December 6th, 2024

• Added a notification when attachments failed to upload to Zivver.
• Fixed an issue where the recipients of an unsecured forwarded conversation were replaced by the recipients of the original conversation.
• Fixed an issue where inline images were limited to a height of 24 pixels.
• Fixed an issue where inline attachments were not being sent.
• Fixed an issue where via.zivver.com recipients were not recognized as Zivver recipients.
• Fixed an issue where an inline image that failed to upload to Zivver was still included in the sent message.
• Fixed an issue where sending messages got stuck in the send flow.

3.185.1-patch.1

November 19th, 2024

• Fixed an issue where 'via.zivver.com' recipients were no longer recognized as Zivver recipients.

3.185.1-patch.0

October 31st, 2024

• Fixed an issue where recipients could be overwritten when replying to a previously unsecurely forwarded Inbound Direct Delivery (IDD) message.

3.185.0

October 28th, 2024

• Fixed an issue where the message could get stuck after changing the 'From' and setting up the verification method after clicking the send button.
• Improve the logs to get more information about messages getting stuck in the Zivver dialog.

3.183.0

October 16th, 2024

• Include the inline images in the overview of attachments uploaded to Zivver.

3.182.2

October 8th, 2024

• Fixed an issue where the button "Remove attachments" didn't work.
• Clean our code.
• Fixed an issue where not all recipient verification methods were visible from the dropdown menu.
• Fixed an issue where attachments were duplicated when popping out a message in a shared mailbox.
• Fixed an issue where changing the 'From' could result in a message being stuck while sending.

3.180.2-patch.0

September 25th, 2024

• Cleaning our code.
• Fixed an issue where an attachment could be uploaded multiple times.
• Improve our logging.
• Improve the recipient verification responsiveness.
• Fixed an issue where sending a message could get stuck.
• Fixed an issue where a message could get stuck for users without a signature.

3.176.1-patch.0

September 9th, 2024

• Fixed an issue where sending a message could get stuck.

3.176.0

September 4th, 2024

• Fixed an issue where logging in could result in a hanging side pane.
• Improved our logging when messages are stuck in the Zivver dialog.

3.174.2

August 23rd, 2024

• Extended the checks for secure information to also include previous message in a thread when replying or forwarding.
• Fixed an issue where attachments were sometimes uploaded twice.
• Improved the way we handle errors for Graph API requests.
• Fixed an issue where the user sometimes couldn't send an email after changing the from field.
• Improved processing data between OWA elements.

3.169.2-patch.0

July 31st, 2024

• Improved our logging process.

3.169.1

July 29th, 2024

• Fixed an issue where information about non-secure messages was logged even when this setting was disabled.
• Fixed an issue where attachments were uploaded twice.
• Fixed an issue where the Zivver OWA add-in could not be deployed via the Manifest file.

3.166.2-patch.1

July 23rd, 2024

• Fixed an issue where the Zivver OWA add-in could not be deployed via the Manifest file.

3.166.2-patch.0

July 18th, 2024

• Fixed an issue where sending regular emails could get stuck in the sending process.

3.166.1

July 15th, 2024

• Fixed an issue where all messages of a conversation were forwarded, even when some were deselected.
• Updated the scanning behaviour to also scan the content of the original message for sensitive content when replying.
• Fixed an issue where the original message was not included in a securely forwarded message.
• Fixed a problem where action buttons in Business Rule warnings were unresponsive and/or (partially) not visible.
• Improved the handling of removing attachments from drafts.

3.165.1

July 8th, 2024

• Fixed an issue where attachments were not removed from the Zivver Attachments when a draft was opened from the drafts folder and the attachments were removed from the OWA interface.
• Fixed an issue where attachments were not removed from the Zivver Attachments when removed from the OWA interface or the other way around.
• Improved how different drafts are identified.
• Fixed an issue where data could be shared between different windows when the Zivver sidepane was pinned in those windows.
• Fixed an issue where attachments could be re-added to a draft because of stored data in the Local Storage.

3.162.0

June 21st, 2024

• Improved the error message in case there is an error related to attachments.

3.161.3

June 16th, 2024

• Adding a small improvement to the log.

3.161.2

June 15th, 2024

• Fixing an issue where data was shared between different messages while replying by the same user.

3.161.0

June 14th, 2024

• Fixing an issue where a message with a revoking period set showed the organization default period when changing the period, instead of the applied period.

3.160.1

June 12th, 2024

• Log more information about attachments.
• Fixing an issue where recipients of different emails could get mixed up.

3.159.0

June 11th, 2024

• Improving the handling of uploading attachments.

3.156.0

June 05th, 2024

• Fixing the attachments not being scanned after the first attempt.

3.154.0

May 29th, 2024

• Fixing the issue with emails that having inline images getting stuck.
• Fixing the attachments counter.

3.153.2

May 20th, 2024

• Fixing the issue with recipients being replaced.
• Fixing an issue with login dialog during sending when the user is logged out.

3.151.1

May 13th, 2024

• Making the button for removing Zivver attachments always visible.

3.149.2

May 02nd, 2024

• Fixing an issue when emails with inline images are getting stuck.

3.149.0

April 30th, 2024

• Improvements for usability and displaying an error when uploading attachments fails.

3.148.0

April 23rd, 2024

• Improvements for internal logging when emails with attachments are getting stuck.

3.147.0

April 18th, 2024

• Improvements for internal logging when emails are getting stuck.
• An improvement for the previously released fix in v3.145.3.

3.145.3

April 11th, 2024

• Fix for calendar invites sent twice.
• Fix for emails being stuck with attachment sending when changing "From" field.

3.145.1

April 11th, 2024

• Performance improvement for email sending when there are no exempted domains.
• Revert of one of the previous fixes released in v.3.140.2.

3.144.0

April 10th, 2024

• Improved performance by reducing the number of calls to the backend on file deletion.

3.143.2

April 08th, 2024

• Display a notification to user when the email is stuck on sending for 10 seconds.

3.141.0

April 04th, 2024

• Fixed the most common case with a message being stuck when changing "From" field with email containing a signature.

3.140.2

April 01st, 2024

• Improved performance by preventing cancelled calls to the backend.

3.140.0

March 29th, 2024

• Improved performance when attaching small files.

3.139.1

March 28th, 2024

• Fixed a bug with certain business rules sometimes blocking sending.
• Fixed an issue with Exempted Domains for senders with capital letters in their email.
• Improved logging.

3.139.0

March 27th, 2024

• Fixed a bug where the Zivver manifest couldn't be installed for new customers.

3.138.0

March 27th, 2024

• Introduced an improvement that extends the duration of checks for sensitive information from 5 minutes to 2 hours.

3.137.0

March 22nd, 2024

• Fixed a bug where uploading many files at once would sometimes trigger a rate limit in the Zivver backend.
• Fixed a bug where a blocking business rule would sometimes not trigger correctly for an exempted domain recipient.

3.136.0

March 20th, 2024

• Added support to exempt domains from scanning to improve performance. Please see this article for more details.

3.134.0

March 6th, 2024

• Fixed a bug where the OWA add-in would block regular emails sent to contact lists and distribution groups.
• Improved flow for sending secure messages to contact lists and distribution groups, making it clear that you have to expand them first.
• Fixed an issue where sending emails wasn't possible when changing the "from" field to an email address without a Zivver account.

3.132.1

February 22nd, 2024

• Fixed a bug in which in rare cases, emails wouldn't get flagged for sensitive content when there was some in attachments.
• Fixed a bug in which when a user was logged out in Zivver, sometimes a blank pane would be shown.
• Some translation updates.

3.130.3

February 8th, 2024

• Fixed a bug in which users in rare cases got stuck when replying to a secure message.

3.130.0

February 1st, 2024

• Fixed a bug in which dialogs in rare cases wouldn't close, blocking the send flow.
• Fixed a bug in which the send process would sometimes get stuck in the check for security issues.
• Fixed a bug in which the side pane would keep loading when opening while replying to an email.
• Fixed a bug in which sending from shared mailboxes would be blocked when there wasn't an associated Zivver account for that mailbox.
• Extended the length for suppressing login reminders from 4 hours to 24 hours.

3.125.0

December 19th, 2023

• Fixed some missing/incorrect Dutch translations.

3.124.0

December 11th, 2023

• Make the OWA add-in ready to support future Secure E-Signatures.
• No functional improvements.

3.122.1

November 30th, 2023

• Introduced performance improvements for sending regular emails, improving sending speed by 100%.
• Made performance metrics more accurate.
• Improved contrast in Secure Send toggle, so it's easier to see when it's enabled.

3.119.0

November 8th, 2023

• Finalized OWA Assisted Mail Submission in trial and live mode.
• Fixed a bug where the send flow would break for shared mailboxes with inline images in signatures.

3.118.4

November 1st, 2023

• Upgrade Angular framework in OWA to Angular 16.
• Fixed a bug where the back icon in the side pane wasn't working.
• Fixed a bug where the number of forwarded messages would be incorrect if you don't forward the entire conversation.

3.118.0

October 24th, 2023

• Implemented OWA Assisted Mail Submission in trial mode.
• Improved functionality to handle business rules by handling them all at once during the send flow.
• Introduced performance monitoring for send flow.
• Fixed a bug where the send flow would get stuck if no recipient verification was submitted.
• Fixed a bug where an M365 account popup would often show if the organization uses a SSO IdP other than Entra ID.

3.113.1

September 25th, 2023

• We've introduced a new major version of the Zivver OWA add-in, which was built from the ground up. It contains many functional improvements for our end users.
• Automated login with SSO.
• Checking for sensitive information in the background.
• Enabling Zivver automatically when sensitive information is detected (based on organizational settings).
• Faster attachment upload speed.
• Less reliance on task pane and send flow dialogs.
• Improved UI.
• Proof of Receipt: See who opened your secure email or not.
• Set up Revocation periods for your emails.

Updated on 2026-02-03.