Here’s an overview of key settings and preferences in Apple Mail (the default email client on macOS), including where to find them and what they do. This guide is especially useful if you're configuring accounts, managing privacy, customizing appearance, or troubleshooting mail delivery.
1) Open Apple Mail → Click Mail (top-left menu) → Select Preferences

2) The tab that opens by default is the Accounts tab where you can manage the options related to your mail accounts.Â
   Account Info – View and edit name, email address, and description.

3) Go to Mailbox Behaviors. This is where you can set how the program treats sent, junk and deleted messages.

4) The Advanced tab shows additional options for the selected mail account. You can also Toggle SSL, port numbers, authentication methods, etc.

5) Let's look at General options.

6) This option sets how often Apple Mail will check for new messages on the server.

7) The RSS tab is where you can change settings related to your RSS feeds. Set your default RSS reader, how often to check for updates to the feeds you have added and choose when to remove the articles.

8) The Junk Mail tab is where you enable or disable junk mail filtering and set how the program reacts when you receive junk mail.

9) On the Fonts & Colors tab, you can set what the font will look like for mailboxes, messages, notes, etc.

10) The Viewing options let you change settings related to viewing messages including the header detail and message threading. The settings on this tab affect message composition. For example, you can change the spell checker, automatically send copies of sent messages to yourself, configure address options, etc.

11) Signatures
Manage email signatures.
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Create multiple signatures – Assign to specific accounts.
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Auto-assign signatures – Automatically rotate or use specific ones.
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Edit content and formatting – Add logos, disclaimers, or links.

12) Rules are basically filters you can set up to sort your mail into folders.

That's it! Now you have seen an overview of the preferences in Apple Mail.