OnlyOffice
OnlyOffice is a complete office suite that gives users the ability to view, edit, and collaborate on documents, spreadsheets, and presentation decks. When enabled, SmarterMail users can use their own (or their organization's) installation of OnlyOffice to edit files currently stored in File Storage, or even create new files and have them stored automatically in their File Storage area. They can also use OnlyOffice to view attachments, based on the supported file types. (E.g., .txt, .docx, .xls, etc.)
In order to set up OnlyOffice for a domain, you will need to Enable OnlyOffice Integration for the domain, then configure the following:
- OnlyOffice Server URL - This is the full URL to the OnlyOffice server. It can be a FQDN (e.g., onlyoffice.some-domain.com) or an IP address.
- Max Connections (0 = Unlimited) - This is the maximum number of connections the domain can make to the specified OnlyOffice server.
Note: The number of max connections to a single OnlyOffice server can vary by license.
- Max Connections for Each User (0 = Unlimited - This is the maximum number of connections a single user can make to the specified OnlyOffice server. As such, it works in conjunction with the Max Connections setting.
OnlyOffice Tips
- If the customer has OnlyOffice running on a different domain than SmarterMail, the x-frame-src header will need to be removed on the OnlyOffice server.
- When working with OnlyOffice Community Server, be sure to include "/ds-vpath" at the end of the OnlyOffice URL. (If NOT using Community Server, this may not be necessary.)
Using OnlyOffice
OnlyOffice is a complete office suite that gives users the ability to view, edit, and collaborate on documents, spreadsheets, and presentation decks. The online version can be integrated with SmarterMail's File Storage area, so SmarterMail users can edit files currently stored in File Storage, or even create new files and have them stored automatically, using their own installation of OnlyOffice.
Creating New OnlyOffice Files
Creating a new file using OnlyOffice is extremely simple: just use the New button and select the type of file you want to create:
Once you've made your choice, the New Document modal will open, allowing you to name your file, select (or change) the type of file you want to create, and then select where you want the new file to be stored. Once done, click the Save button and the new file is created, and a new browser tab opens so you can begin editing your new file.

Editing Existing Files
Editing an existing file is just as easy. Simply click the Actions (⋮) button on any text file, document, spreadsheet, or presentation, and select Edit with OnlyOffice from the menu options. The OnlyOffice editor will open in a new browser tab, and you can edit to your heart's content.
Worth Noting
There are a few things worth noting regarding the integration of OnlyOffice:
- Depending on licensing, OnlyOffice sessions may be limited. If so, the system administrator will need to know that when setting up the integration. They also have the ability to set the maximum number of sessions any one user can have open at a time.
- OnlyOffice has an automated save and timeout feature that cannot be controlled by SmarterMail. By default, if a file is open in a tab for more than 60 minutes, without any session activity, it will automatically save and the session will time out.
- If SmarterMail goes down when a file is open, the file will appear in File Storage with a warning icon on it. When you open the file, you're presented with some recovery options. (Recover document and overwrite, rename and recover document, Download, or Delete the recovered copy.)