If Mail seems stuck, try going to the Window menu and choosing "Activity" and also "Connection Doctor." You'll learn a lot there.
Use Mac Mail’s Activity window and Connection Doctor to see what Mail is doing
Smaller Mac Mail mailboxes open more quickly
The Mac's Mail app opens smaller folders faster than fuller ones. Speed up your Inbox by moving old mail to other mailboxes. Makes a big difference.
Let Apple take care of Daylight Saving Time on your Mac
Your Mac will always have the correct date and time, through power outages, Daylight Saving time, whatever-- if you choose the right options in the Date & Time preference pane.
Organize your passwords on your Mac and be more secure
Time to get organized with a password management app. More than a safe place to store passwords, 1Password makes up new passwords, has secure notes, and more.
Get Mac System Information with a single click
Get detailed information about your Mac in a single move, under the Apple menu. What other people do in two moves you can do in one!