Mac Mail not refreshing, Mail app on Mac OS X is a great interface like outlook on windows. If you didn’t try or not using the Mail app then you must use and take an advance mail option that not available for each Email service. One of the most popular settings that you can manage by change fetch new Email auto time on macOS Catalina, High Sierra, EI Capitan, OS X Yosemite.
Notification pop up on your Mac Screen will appear at the top right corner When new mail comes to your address. Without re-login you can access multiple mail account with a single app securely.
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Also access all mail auto-saved on your Mac’s Drive, when you are the offline or poor internet connection. In that case, you can manage time intervals to check new incoming mail from multiple options. Go with below easy steps on your iMac, Mac, MacBook, MacBook Pro or Air.
Steps for Change Fetch New Mail Auto Time on macOS Catalina, High Sierra, EI Capitan, OS X Yosemite
Step 1: Open Mail App on Mac /OR/ Search Mail in Spotlight search.
Step 2: From the top menu Under the Mail > Preferences…
From Top General Tab, Choose time interval from Check new message, Never, Every Minute, Every five minutes, Every hour, Every Thirty-minute. 
Note: are you changing time interval due to some disappointing settings like notification sound and any reason. Then share with us, we are happy to assist you. I Noticed many Mac user changes auto-new message time interval due to notification sound; then you can update it under Mail > Preference > General Tab > New messages sound.
Useful: Set password on Mac Folder: Mac OS X
If you didn’t get a new message automatically, Once go with the above steps on change fetch new mail auto time on Mac and verify you shouldn’t choose the “Never” option from the dropdown menu.
Jaysukh Patel is the founder of howtoisolve. Also self Professional Developer, Techno lover mainly for iPhone, iPad, iPod Touch and iOS, Jaysukh is one of responsible person in his family.
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