Update for macOS 11.3

[jabeler]

Just FYI, this still works in 11.3 but the Plist needs to be updated.

1. Copy/paste new plist
/Library/Mail/Bundles/UniversalMailer.mailbundle/Contents/Info.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>BuildMachineOSBuild</key>
	<string>16F73</string>
	<key>CFBundleDevelopmentRegion</key>
	<string>en</string>
	<key>CFBundleExecutable</key>
	<string>UniversalMailer</string>
	<key>CFBundleIdentifier</key>
	<string>it.noware.UniversalMailer</string>
	<key>CFBundleInfoDictionaryVersion</key>
	<string>6.0</string>
	<key>CFBundleName</key>
	<string>UniversalMailer</string>
	<key>CFBundlePackageType</key>
	<string>BNDL</string>
	<key>CFBundleShortVersionString</key>
	<string>3.0</string>
	<key>CFBundleSignature</key>
	<string>????</string>
	<key>CFBundleSupportedPlatforms</key>
	<array>
		<string>MacOSX</string>
	</array>
	<key>Supported10.15PluginCompatibilityUUIDs</key>
	<array>
		<string># UUIDs for versions from 10.12 to 99.99.99</string>
		<string># For mail version 12.0 (3445.100.39) on OS X Version 10.14.1 (build 18B45d)</string>
		<string>A4343FAF-AE18-40D0-8A16-DFAE481AF9C1</string>
		<string># For mail version 13.0 (3594.4.2) on OS X Version 10.15 (build 19A558d)</string>
		<string>6EEA38FB-1A0B-469B-BB35-4C2E0EEA9053</string>
	</array>
	<key>Supported11.0PluginCompatibilityUUIDs</key>
	<array>
		<string>D985F0E4-3BBC-4B95-BBA1-12056AC4A531</string>
	</array>
	<key>Supported11.1PluginCompatibilityUUIDs</key>
	<array> 
		<string>D985F0E4-3BBC-4B95-BBA1-12056AC4A531</string> 
	</array>
	<key>Supported11.2PluginCompatibilityUUIDs</key>
	<array> 
		<string>D985F0E4-3BBC-4B95-BBA1-12056AC4A531</string> 
	</array>
	<key>Supported11.3PluginCompatibilityUUIDs</key>
	<array> 
		<string>D985F0E4-3BBC-4B95-BBA1-12056AC4A531</string> 
	</array>
	<key>CFBundleVersion</key>
	<string>19</string>
	<key>DTCompiler</key>
	<string>com.apple.compilers.llvm.clang.1_0</string>
	<key>DTPlatformBuild</key>
	<string>8E3004b</string>
	<key>DTPlatformVersion</key>
	<string>GM</string>
	<key>DTSDKBuild</key>
	<string>16E185</string>
	<key>DTSDKName</key>
	<string>macosx10.12</string>
	<key>DTXcode</key>
	<string>0833</string>
	<key>DTXcodeBuild</key>
	<string>8E3004b</string>
	<key>NSHumanReadableCopyright</key>
	<string>Copyright © 2017 noware. All rights reserved.</string>
	<key>NSPrincipalClass</key>
	<string>UniversalMailer</string>
	<key>SUFeedURL</key>
	<string>https://universalmailer.github.io/UniversalMailer/appcast/appcast.xml</string>
	<key>SUPublicDSAKeyFile</key>
	<string>dsa_pub.pem</string>
</dict>
</plist>

2. Run the following 2 commands in Terminal

sudo spctl --add --label "ApprovedApps" /Library/Mail/Bundles/UniversalMailer.mailbundle
sudo spctl --enable --label "ApprovedApps"

3. Open Mail.app and enable in Preferences > General > Manage Plugins (choose Allow on security prompts)

4. Done! 🙂

[bobergmans]

Hi, I was just trying to update the plist-file but I can't find it in the files in /Library/Mail.

However, I can select it in the plugin menu in mail:

Any suggestion as to where I can find the plist file?

[jonathanlaniado]

Thanks @jabeler, this enabled the plugin for me. I'll have to test and see if it actually works. THANK YOU!

[jabeler]

Any suggestion as to where I can find the plist file?

Maybe check both /Library/Mail and ~/Library/Mail?

[bobergmans]

Maybe check both /Library/Mail and ~/Library/Mail?

This was it! Works like a charm now. Thanks for the help!

[jonathanlaniado]

@jabeler, @bobergmans, is the plug-in working for you? It's enabled and comes up in Mail's preferences, but style/CSS injections don't appear to work. Is it working for you?

[jabeler]

Working for me.

[robhester]

So - co-opting this thread a bit (FWIW I too am fine with 11.3 — works great), what does everyone use to try to get Apple Mail as “Outlook-looking” as possible? Here’s mine, but to be honest this was just trial and error. I am no CSS genius :( On May 2, 2021, at 12:51 PM, jabeler ***@***.***> wrote: Working for me. <https://user-images.githubusercontent.com/31429009/116820832-3cb3d680-ab34-11eb-950a-e7ea729ce16e.png> — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#133 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AILLO5576APT2WM654LZK33TLV7I7ANCNFSM43TNKFTQ>.

[jonathanlaniado]

@robhester, not seeing your image coming through here.

[robhester]

[jonathanlaniado]

@jabeler, thanks for confirming. Turns out I just needed to restart my Mail app once for the messages to take in the CSS properly.

@robhester, for what it's worth, I use very similar CSS for Outlook purposes:

font-family: Calibri, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica, Arial, sans-serif;