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Apple Mail in macOS Catalina 10.15 - IMAP Setup

This tutorial will show you how to setup your email account in Apple Mail 13.x on macOS Catalina.

At the time of this writing, the latest macOS version is Catalina 10.15.3, please make sure your computer is updated to the latest version of macOS to ensure the screenshots below match.

Do not skip any steps in this tutorial. Following these instructions out of order or failing to finish each step will likely result in an error or incorrect setup. You must know your current email address and password to add your account to the native Mail app on your Mac

Screenshots are for reference only. Please read the instructions at each step.


Determine Your Mail Server Address
You will use the mail server address for both incoming mail server and outgoing mail server settings when adding your email account to Mail


Step 1: Open a web browser on your computer and go to webmail.yourdomain.com (replace yourdomain.com with your actual domain name)
For example, if your email address is bob@xyzhealth.com, you would type in webmail.xyzhealth.com
Do not use a search box (from Google, Bing, Yahoo, etc.) or include http:// or https:// when entering the URL into the browser's address bar.


Step 2: You will automatically be redirected to your mail server.
Your mail server address is the first portion of the URL.
In this example, the mail server address is: mail.enguard.com


Step 3: Please write down your mail server address, you will need it to complete the steps below. This is also a good time to login to webmail with your email address and password to ensure that you have the correct login information.


Step 4: Open Mail


Step 5: Click on the Mailboxes tab to show your folders


Step 6: From the Mail menu (top left), select Preferences


Step 7: Click the Accounts icon, then click the + sign at the bottom left


Step 8: Select Other Mail Account... then click Continue


Step 9: Complete the following fields:

A) Enter your name, this will be the displayed on all outgoing messages (what recipients see)
B) Enter your email address
C) Enter your email password

Click Sign In


Step 10: Enter your mail server address twice, then click Sign In


Step 11: Uncheck Notes, as this feature is not supported, then click Done


Step 12Description: Give this account a name to identify it (useful if you have multiple email accounts in Apple Mail)


Step 13: Click Mailbox Behaviors
Erase deleted messages: select Never from the drop-down
Close Preferences


Step 14 (Optional): By Default, Mail turns ON Conversation mode. Some people like this view, while some people do not.
To turn it off, from the View menu (top left), select Organize by Conversation to remove the checkmark (repeat this step to turn it back on)