Open the Terminal, type or copy and paste this in, and hit RETURN. Say bye, bye to the less-than and greater-than signs you see when you copy and paste an email address in Mail. If you prefer, use TextWrangler or some other editor to edit the com.apple.mail.plist file directly, though using the Terminal is easier.
defaults write com.apple.mail AddressesIncludeNameOnPasteboard -bool NO
[From Mac Daddy World » Blog Archive » Fixing “Copy Address” in Mail on 10.6]
Here are some good tips for fixing slowdowns on your Mac.
I especially like the advice given for web browsing and using Mail:
Quit and Relaunch Web browsers tend to be resource hogs, and if you visit lots of media-rich sites, this effect can increase over time. Quit and relaunch your browser occasionally (at least once a day) to speed up browsing and reduce your browser’s impact on other programs.
Over time, though, these databases can become cluttered or even corrupted, resulting in slower overall performance, among other problems. You may be able to speed up your e-mail client significantly by rebuilding the message index every few months.
Mail’s Rebuild command (Mailbox: Rebuild) works only on individual mailboxes.
A bizarre, inexplicable problem hit me this morning. I suddenly had no Mail.app. Everything appeared fine, and I even managed to answer one email. The rest of my emails gave me some message about needing to be downloaded from the server (something I have never seen before). I did some digging and found this awesome trick to use when encountering similar Mail.app problems.
Basically, find:
~/Library/Mail/Envelope Index
Rename it to:
~/Library/Mail/Envelope Index.bak
Restart Mail and let it reload your messages. All was fine after that!
I just purchased my first .Mac membership. The marketing all sounds great, but it has some problems.
1. Mail continues to show up in my “Draft” mailbox after I’ve already sent it. Very weird.
2. My bookmarks won’t sync no matter what. I’m stuck with the default Apple bookmarks that come with Safari. Everything else seems to sync okay.
3. Using iDisk through the Finder is impossibly slow. Don’t even try it. Get Transmit instead.
