I have six email addresses: five business ones and one personal address. If I don’t set a default mail account, each time I write a new email it’s sent from one of my business addresses. If I want to send the mail from my personal address, I have to remember to choose the correct personal account from a drop-down box.
However, most of my email correspondence is business-related, so I want my Apple World Today email address to be my default email account. (I’m the editor of the news site). Thankfully, that’s easy with macOS.
Set Default Mail Account
Open the Mail application on your Mac and select “Mail > Preferences” from the menu bar.
Click the Composing tab at the top of the Composing preferences window.
Choose the desired account from the drop-down menu next to “Send new messages from.”
If you want to use another mail server to send a message, in the New Message compose window, below “To, Cc, Subject” is the From line where you can select a different server from which to send your mail.