What is "on my mac" in mail?

What is "on my mac" in mail? MacBook Air Sequoia 15.6.1


I would like to delete this account, but I'm unsure what problems that may cause. As I am deleting files, it is showing up on in Trash in "On my Mac."


MacBook Air, macOS 15.6

Posted on Nov 23, 2025 6:39 PM

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Question marked as Top-ranking reply

Posted on Nov 23, 2025 9:29 PM

"On My Mac" is simply a list of mailboxes that reside on the Mac and not on any mail server out on the web.

It is not a mail account per se, just a collection of local mailboxes.


You can copy any of your mail messages to the mailboxes you create there for offline access.


You can view or hide these mailboxes you have created on your Mac by clicking the disclosure caret (>) you'll see if you hover the mouse cursor just to the right of that "On My Mac" text.


Mail User Guide for Mac - Apple Support


1 reply
Question marked as Top-ranking reply

Nov 23, 2025 9:29 PM in response to S1_7-3R

"On My Mac" is simply a list of mailboxes that reside on the Mac and not on any mail server out on the web.

It is not a mail account per se, just a collection of local mailboxes.


You can copy any of your mail messages to the mailboxes you create there for offline access.


You can view or hide these mailboxes you have created on your Mac by clicking the disclosure caret (>) you'll see if you hover the mouse cursor just to the right of that "On My Mac" text.


Mail User Guide for Mac - Apple Support


What is "on my mac" in mail?

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