Modifying this control will update this page automatically
![](https://help.apple.com/assets/61DC8A1AC689DE6B7F17E3B8/61DC8A1BC689DE6B7F17E3BF/en_US/fcdf74cf8457ce188a2aaa7cf1293c83.png)
If an email account is inactive in Mail on Mac
In the Mail app on your Mac, a disabled email account is dimmed in the list of accounts in Mail preferences, and its mailboxes and messages aren’t shown in the Message viewer.
Do one of the following:
Turn on accounts in Mail: Choose Mail > Preferences, click Accounts, select the inactive account, click Account Information, then select “Enable this account.”
Turn on accounts in System Preferences: Choose Apple menu
> System Preferences, click Internet Accounts, select an account, then select the Mail checkbox.