Download Letter Opener for macOS Mail

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The current version requires macOS 10.10 Yosemite or later, but you can download the last compatible version of Letter Opener for macOS Mail.

Download 7.0.5

Upgrade to macOS Sierra for free.

Visit the macOS Sierra page in the Mac App Store. Click the download button, and follow the onscreen instructions to begin your upgrade.

The current version requires macOS 10.10 Yosemite or later, but you can download the last compatible version of Letter Opener for macOS Mail.

Download 6.0.7

Upgrade to macOS Sierra for free.

Visit the macOS Sierra page in the Mac App Store. Click the download button, and follow the onscreen instructions to begin your upgrade.

Version: 10.0.1 released on: Oct 3, 2017
Compatible: macOS High Sierra (Mail 11.0), macOS Sierra (Mail 10.3), OS X El Capitan (Mail 9.3) and OS X Yosemite

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Older Versions

macOS Version 10 Version 9 Version 8 Version 7 Version 6
10.13 High Sierra Intel
10.12 Sierra Intel Intel
10.11 El Capitan Intel Intel Intel
10.10 Yosemite Intel Intel Intel Intel
10.9 Mavericks Intel Intel
10.8 Mountain Lion Intel
10.7 Lion Intel
10.6 Snow Leopard Intel
Download 9.1.9 Download 8.0.8 Download 7.0.5 Download 6.0.7
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Double-click “Install Letter Opener.pkg” in Downloads

Double-click “Install Letter Opener.pkg” in Downloads
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Follow the Installers instructions

Follow the Installers instructions
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Click “Launch Mail”

Click “Launch Mail”
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You’re All Set

You’re All Set