It’s pretty straightforward to setup PGP signing and encryption in OS X’s Mail program:
- install PGP on your machine
- install the PGP keychain access app
- create yourself a public/private key pair with the above app – I chose the default 1024 bit encyption and it took a few seconds to generate, Tom chose 4096 and it took > 5 mins on his Quad Mac Pro 2.66 Ghz
- install the Mail.app PGP plugin and restart the program
After that you get a box to tick if you want to sign your messages, which prompts you for your passphrase if you don’t set your Preferences to remember it. And for any addressee whose public key you’ve imported into your keychain access app, you can send an encrypted message.
UPDATE: I regret recommending this plugin, as reported by Wes in the comments I also found unread message began to report incorrectly for my IMAP account. Removing the plugin solved the problem. From the author’s FAQ
To uninstall GPGMail, you only need to delete the file GPGMail.mailbundle located in $HOME/Library/Mail/Bundles.
July 13th, 2007 at 3:35 pm
I recently uninstalled GPGmail because it kept marking mail that I’d already read as unread on my IMAP server.
But if it works for you, it works for you.
July 13th, 2007 at 3:39 pm
Damn, it’s doing the same to mine, thanks for the heads up :-/
August 22nd, 2007 at 6:13 pm
I had the same problem with my IMAP account, but this URL details the workaround:
http://www.andyd.net/index.php/2007/05/31/gpgmail-and-apple-mail-unread-messages/
Since then, my IMAP unread counts have been accurate.
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