The email programs in this list each offer distinct features. Some apps display mail differently or have additional options for notifications or security, but they all have one thing in common: They can access email from nearly every email provider.

Delay emails to have them sent later.Set up email rules.Build distribution lists.Send replies automatically.Delete duplicate emails easily.Empty the trash folder every time you exit eM Client.Customize notification sounds.Password-protect the entire program.Auto-backup your emails to any custom folder.Download custom spell-checker dictionaries.Configure custom keyboard shortcuts.Set up QuickText for faster typing.Translate emails.Send mail to multiple people while masking each email address from the other recipients (via the mass mail feature).

You can buy eM Client for VIP support, the ability to connect an unlimited number of email accounts, and the option to use the program in a commercial setting. Thunderbird stands out from other free Windows email programs in many ways, such as supporting lots of add-ons, letting you download themes to customize the program’s entire appearance, and granting full access to tweak its many settings and features. This email program is fully functional in its free Lite form. If you want to remove the ads and have more features like the option to snooze emails and connect to more than just one email account at once, however, you have to upgrade to Mailbird Pro. This email program is pretty basic, so it doesn’t include advanced filtering options or rules to auto-delete messages or move them around based on senders. However, Mail is ideal if you prefer a simple solution that lets you set up a new email account easily and integrates well with Windows. This email client includes a neat spam blocker that not only lets you block the sender’s email address but also allows you to bounce the email back to the sender to make it appear as if your address isn’t valid. Unfortunately, its free version is missing features such as email backup and the ability to switch between program skins. Mailspring Pro offers support for scheduled emails, snoozing, link tracking, follow-up reminders, read receipts, and more. You can use some of these features in the basic/free edition but only a few times a week.