Updating the IMAP path prefix in Mac Mail

Applies to:
Professional Hosting
Business Hosting
WordPress Hosting

Difficulty:
Easy

Time Needed:
5 minutes

Introduction

This is a quick step-by-step guide to updating the IMAP path prefix in Mac Mail (on macOS High Sierra), to correctly route your mail program to show all folders.




How to update the IMAP path prefix in Mac Mail


Step 1

Open Mac Mail

Firstly, you'll need to open Mac Mail by clicking on the Mail icon, in your dock.

Open Mac Mail

Step 2

Choose 'Mail > Preferences'

Once Mac Mail has opened, choose 'Mail' from the main menu, then from the drop down menu choose 'Preferences'.

Choose 'Mail > Preferences'

Step 3

Choose 'Accounts'

You will be presented with dialog box. Please click on the option labelled 'Accounts', and choose the relevant mailbox from the accounts listed in the left hand column.

Choose 'Accounts'

Step 4

Choose 'Server Settings'

Then click on the tab labelled 'Server Settings'.

Choose 'Server Settings'

Step 5

Choose 'Advanced IMAP Settings'

Once you are on the 'Server Settings' pane, locate the button labelled 'Advanced IMAP Settings' and click on it.

Choose 'Advanced IMAP Settings'

Step 6

Edit 'IMAP Path Prefix'

In the field labelled 'IMAP Path Prefix', enter "/".

Edit 'IMAP Path Prefix'

Step 7

Save Your Changes

When you have made these changes, close the dialog box. If you are prompted to save your changes, click on the 'Save' button. Your mail setup is complete. You may need to restart your mail client for the new settings to take effect. Once completed, you should be able to see all files that were present on the old mail system.

Save Your Changes

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