Citrix Files for Outlook


Citrix Files for Outlook allows you to bypass file size restrictions and add security to your attachments or emails by sending them through Citrix Files. You can provide a secure file upload request for co-workers, customers, and partners directly in your email.

Be notified whenever someone accesses a file or sends you a file so you are always aware of what is going and can take action. You can also set different security and access levels on a file-by-file basis for greater control.

Download Citrix Files for Outlook at Citrix Downloads.

What’s new

What’s new in 6.5

Support for recent files

Citrix Files for Outlook now allows you to access your Recent Files quickly.

Recent Files 1

Recent Files 2

Support for latest file sharing

This update also allows you to share the latest versions of files from Citrix Files and personal cloud connectors.

What’s new in 6.4

File browser redesign and improvements

The file browser has been redesigned and improved to make selecting and sharing files and folders even easier.

Citrix Files for Outlook New 1

All functionality has been preserved; access is now faster to shared and personal folders and to cloud connectors.

Citrix Files for Outlook New 2

Validation checks have been improved to provide better error and warning message handling.

Citrix Files for Outlook New 3

New navigation allows you to easily go back to the previous folder or navigate between folders.

Citrix Files for Outlook New 4

Stronger security for files and folders

Virus strictness settings at the account level have been expanded with new options to provide stronger security.

A warning now appears when someone attempts to send or download an infected file. Sending and downloading any unscanned or infected files is blocked. An icon also appears next to unscanned files.

Miscellaneous updates

This update also includes enhancements that let you:

  • Save attachments to on-premises connectors and personal cloud connectors.
  • Submit your feedback in the Help menu under Feedback & Support section.
  • Set up a default expiration policy to 3 months or send a link with a custom expiration policy of 3 months.

What’s new in 6.3.1

This release addresses a number of issues that help to improve overall performance and stability.

What’s new in 6.3

Addition of Citrix Files for Outlook to VDA installation

Citrix Files for Outlook is now an optional installable component when setting up your VDA. VDA 1903 or later is required. For more information, see What’s new in Citrix Virtual Apps and Desktops 7 1903.

Upgrades to cloud connectors

If you already have a personal cloud connector linked to your account, you are no longer prompted to log on.

You can now share a file from a personal cloud connector that you have selected as a Favorite.

You can now use single sign-on to log on to on-prem enterprise connectors (CIFS and SharePoint) when using Citrix Workspace app.

What’s new in 6.2

Improved error messaging

Error messaging is improved when storage limit is exceeded. To bypass the error message, users need to delete unneeded items from their account and try again.

Add-in Express updates

Citrix Files for Outlook has been updated to Add-in Express for Office v. 9.1 to improve performance.

Fixed issues

Fixed issues in 6.5

  • Attachments might get converted to Citrix Files attachments even if the user is not signed in. [SFOLP-1307]
  • Closing a folder that is still loading might display an incorrect folder when reopened. [SFOLP-1334]
  • Attachments might be added as Citrix Files attachments even if the user is not signed in. [SFOLP-1355]
  • Authentication intermittently fails when launching Outlook. [SFOLP-1360]

Fixed issues in 6.4

  • The icon that displays on the welcome message after installing a new version of Citrix Files for Outlook might be pixelated. [SFOLP-1042]
  • Users might have to manually authenticate again after using single sign-on to sign in. [SFOLP-1152]

Fixed issues in 6.3.1

  • Recipients might not be able to access shares that require logon. [SFOLP-1051]

Fixed issues in 6.3

  • When logging out from Citrix Workspace app, Citrix Files for Outlook might remain logged in. [SFOLP-1020]
  • Citrix Files for Outlook might prompt to log on frequently. [SFOLP-1025]
  • Attachments might auto-convert even if you are not logged on. [SFOLP-1046]
  • Launching Microsoft Outlook after 15 minutes in a Citrix Virtual App or Citrix Virtual Desktop session would prompt for logon instead of using single sign-on. [SFOLP-1048]
  • Top-level personal cloud connector folders can be selected to share. [SFOLP-1092]
  • When personal cloud connectors are not configured, an empty logon page appears. [SFOLP-1093]
  • Some settings are preserved after tokens have expired and a different user has logged on. [SFOLP-1128]

Fixed issues in 6.2

  • Items might fail to attach if the email is saved as a draft. [SFOLP-984]
  • The Custom Settings dialog might appear at the bottom of the screen. [SFOLP-990]
  • The Citrix Attachments banner might appear outside of an email window. [SFOLP-1006]
  • Special characters might not be allowed in email addresses. [SFOLP-1014]
  • When using the per-machine install option, a “Browser out of date” prompt might appear after entering a subdomain. [SFOLP-1018]

Known issues

Known issues in 6.5

No new issues have been observed in this release.

Known issues in 6.4

No new issues have been observed in this release.

Known issues in 6.3.1

No new issues have been observed in this release.

Known issues in 6.3

No new issues have been observed in this release.

Known issues in 6.2

No new issues have been observed in this release.

System requirements

OS requirements

  • Windows 7 or later

.NET requirements

  • Microsoft .NET Framework 4.6 or later

Microsoft Outlook version requirements

  • Microsoft Outlook 2007, 2010, 2013, 2016, 2019 (32-bit and 64-bit).
  • Office 365 plans that include full, installed Office applications.


The local version of the plug-in is not compatible with Microsoft Outlook Express, Outlook for Mac, or web-based Outlook.

Citrix Content Collaboration requirements

  • A Citrix Content Collaboration Advanced, Premium, or Virtual Data Room plan.
  • User must be an Employee user on the account.