Email, Messaging, & Video Calls Email How to Delete an Outgoing Mail Server in macOS Mail What to do with malfunctioning or obsolete mail servers By Heinz Tschabitscher Writer A former freelance contributor who has reviewed hundreds of email programs and services since 1997. our editorial process Heinz Tschabitscher Updated February 15, 2020 Image Source / Getty Images Email Yahoo! Mail Gmail Tweet Share Email Apple's macOS Mail lets you set up several outgoing email servers. This flexibility can come in handy sometimes, but it's useful to know how to delete SMTP server settings in the event that you don't need them anymore. For example, maybe the server settings are no longer relevant to your email accounts, or maybe they're old and broken. Instructions in this article apply to Mac OS X Mavericks (10.9) and later. How to Remove SMTP Server Settings in macOS Mail Regardless of the reason, you can remove SMTP settings in macOS Mail using these steps. Select Preferences under the Mail menu. Click the Accounts tab. Open the Server Settings tab. If you're using an older version of Mail, you will not see this option. Just skip to the next step. Next to Outgoing Mail Account, click the drop-down menu and choose the Edit SMTP Server List option. Some versions of Mail might call this the Outgoing Mail Server (SMTP), and the option Edit Server List... Select an entry and choose the minus button toward the bottom of the screen, or pick an option called Remove Server if you see it. Depending on your version of Mail, hit the OK or Done button to return to the previous screen. You can now exit any open windows and return to Mail.