Multiple Sending Options

Improve your work productivity with best-in-class add-in capabilities like large file attachment, read receipt, separate and macro sending.

Large File & Folder Attachment

With Office Plugin, you can securely send large files and folders without leaving your Outlook window. In addition to large file attachments, Office Plugin also gives you control to set the storage period and location of the attachment files.

  • Access management for attached files and folders by setting storage period.
  • Easy file management
    • Download and delete previously attached files easily through ATCH Files at any time.

Read Receipt & Notification

Office Plugin provides a read receipt without the recipient knowing. Once you install Office Plugin, the read receipt will automatically turn on, and you can easily find out if someone opened your emails by setting up real-time notifications.

  • The time & date of your message was opened.
  • The number of times an email was opened by each recipient.
  • Devices that emails are opened on.
  • The IP address of the recipient.

Single Read Receipt (Exchange & SMTP) - Default

  • It's only available to find out whether your email was opened or not. You won't be able to check who opened your email. It only tells the client information except for the exact recipient.

Multi Read Receipt (SMTP only)

  • As multi read receipt check each recipient by sending as many emails as the number of recipients to check who opened the email, you'll see duplicated emails in your sent items. However, you can check detailed read receipt information by recipients.

File Explorer

Office Plugin's File Explorer, you can easily attach files from your desktop, OneDrive, SharePoint, and Teams by Drag & Drop. You can also save attached items in your emails to anywhere you want.

Separate Sending

With Office Plugin, you can send an email to multiple recipients with a single click. It's very useful when you have to send the same email item like newsletters, announcements to more than 2 people separately.

Macro Sending
(Personalized email sending)

You can send personalized emails by adding macro such as recipient's name, company name, and job title. The macro value is based on the organization chart or Outlook contacts information.


* Macro sending is only available when the separate sending is activated.

  • m_name:  Full name of the recipient
  • m_firstname: First name of the recipient
  • m_lastname: Last name of the recipient
  • m_email: Email address of the recipient
  • m_company: Company name of the recipient
  • m_department: Department of the recipient
  • m_jobtitle: Job title of the recipient

Email Scheduling

You can schedule your emails to send at a specific date and time, even though your computer or Outlook is turned off.

* Office Plugin's email scheduling is only available for Exchange users if users activate Exchange Web Service (EWS). If you're using Multi-factor authentication, you won't be able to use the email scheduling feature.

Email Recalling

You can recall and delete an email message sent to the wrong person. It only works with emails sent to persons within the same company (same email domain). 

HTML Source Viewer

You can directly edit and preview HTML sources in Outlook. Once you make changes to HTML, the results will appear instantly in your web and mobile browser view.

Make your working experience more productive with Office Plugin.