--- title: How to Post a Letter Using PostboxPrint™ (Ghost Mode) description: Ideal for sending lots of mail quickly - no preview windows or interruptions. --- [Skip to content](https://support.postworks.co.uk/knowledge/how-do-i-post-a-letter-using-postboxprint-ghost-mode#main-content) ![Logo (transparent background, red emblem, red text, tagline NOT included) (PRIVATE).png\]](https://support.postworks.co.uk/hs-fs/hubfs/Logo%20(transparent%20background%2c%20red%20emblem%2c%20red%20text%2c%20tagline%20NOT%20included)%20(PRIVATE).png?height=40&name=Logo%20(transparent%20background%2c%20red%20emblem%2c%20red%20text%2c%20tagline%20NOT%20included)%20(PRIVATE).png) Open main navigation Close main navigation - [Postworks Portal](https://app.postworks.co.uk/dashboard/send) [Postworks Portal](https://app.postworks.co.uk/dashboard/send) Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [Support Centre](https://support.postworks.co.uk/knowledge?hsLang=en) 2. [PostboxPrint™](https://support.postworks.co.uk/knowledge/postboxprint?hsLang=en) 3. [Getting started](https://support.postworks.co.uk/knowledge/postboxprint?hsLang=en#getting-started) # How to Post a Letter Using PostboxPrint™ (Ghost Mode) ## Ideal for sending lots of mail quickly - no preview windows or interruptions. ### Why Use Ghost Mode? When you’re posting a high volume of letters, the preview window can become repetitive since it appears for every single file sent. **Ghost mode** removes that step by automatically sending your letters straight through your default Postbox settings. This makes it faster and more efficient when you’re processing lots of mail at once. ### 1. Set your 'Default Postbox' Ghost mode uses your designated default Postbox to process letters automatically. To set one: 1. Go to **Send → My Postboxes**. 2. Select the Postbox you want, click **Edit**, then tick **Make this my default Postbox**. ![printghost1](https://support.postworks.co.uk/hs-fs/hubfs/printghost1.png?width=470&height=524&name=printghost1.png) ![printghost2](https://support.postworks.co.uk/hs-fs/hubfs/printghost2.png?width=603&height=308&name=printghost2.png) 3. Click **Save**. ### 2. Use PostboxPrint™ (Ghost Mode) to Post Your Letter 1. Open your document within your system. 2. Go to **Print**, and select **PostboxPrint™ (Ghost mode)** as your printer. **![](https://support.postworks.co.uk/hs-fs/hubfs/image-png-Nov-20-2020-12-48-28-31-PM.png?width=315&height=454&name=image-png-Nov-20-2020-12-48-28-31-PM.png)** 3. Select **Print**, and your letter is submitted immediately - no preview displayed. 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