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OffHours for Outlook

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Updated:
1 May 2025
See also:
OffHours for Office 365
SetDeliveryTime for Outlook
DelayOutOfHoursEmails Flow for Office 365

Purpose

This add-in ensures that emails you write after business hours or on weekends are held and sent only at the start of the next business day.

Set your business hours by modifying the recurring appointment named AllowedToSend, located in the AllowedToSend subfolder of your Calendar. This appointment defines when emails are sent immediately versus when they are delayed.

OffHours: the AllowedToSend recurring appointment in the Calendar subfolder

Current version: 1.0.9

The application is a COM add-in compatible only with classic desktop Outlook for Windows. It does not support the new Outlook for Windows. Comparison of classic Outlook (with add-in support) and new Outlook for Windows

Installation

  1. On a client workstation where Outlook is installed, download the OffHours-Demo.zip archive and extract all files.
    Exit Outlook if it is running, then run OffHoursSetup(DEMO).exe and follow the instructions.
  2. Start Outlook. Select File > Options > Add-ins and make sure that OffHours is listed under Active Application Add-ins.
    OffHours addin installation Picture 1
  3. Navigate to the AllowedToSend subfolder of your Calendar folder. Modify the recurring appointment AllowedToSend according to your needs.
    OffHours addin installation Picture 2

Testing

  1. At any time during non-business hours, run Outlook and send a message. Verify that the message is held in the Outbox folder. Enable the Defer Until column in the Outbox. Note that Defer Until is set to the start of the next business day.
    OffHours addin testing Picture 1

    Marking a message as High Importance allows it to be sent immediately, even during off hours.
    OffHours addin testing Picture 2

    If you have already deferred a message but want to send it immediately, right-click it and press the Send now button.
    OffHours addin testing Picture 3

  2. At any time during business hours, run Outlook and send a message. Verify that the message is sent immediately and appears in the Sent Items folder.

Demo Version Notes

The demo version adds [OffHours DEMO] to the subject line of each message delayed in sending.

Uninstallation

You can uninstall the add-in via Settings > Apps (called "Installed Apps" in Windows 11 and "Apps & features" in Windows 10).

Pricing and Licensing

Licensing policy: The product is licensed per user.
Payments are processed by PayPro Global and BMT Micro.
License type
Price per unit
Your payments will be securely processed by PayProGlobal
Your payments will be securely processed by BMT Micro
Single license
$35.00
Add to cart via PayPro Global  ORDER
Add to cart via BMT Micro  ORDER
Site license
$1,500.00
Add to cart via PayPro Global  ORDER
Add to cart via BMT Micro  ORDER
Enterprise license (including the source code)
$4,500.00
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Add to cart via BMT Micro  ORDER
Customer Support
Customer Support

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