I would like to search within an individual email message using OS X Mail version 5.3 or above (Lion, Mountain Lion). I would like this search to include the email header.
Using the menu item Edit > Find > Find… or Command-F via the keyboard I am able to search the entire message, exclusive of the header. I would like to search the header, also.
An example of how this would be used: An email message is sent to hundreds of recipients which you want to search to find a specific email address.
The Pause function is very helpful, and Apple has a whole section for Mail in the library. I would save it as an application and then run it with Spotlight or Alfred or Launchbar whenever you need it.
Best Answer
After months of assuming there was no solution to my inquiry, I stumbled on a way to search the entire contents of an individual OS X Mail Message, including headers.
First open the email message you want to search in it's own window. Before initiating your search, select the menu item
View > Message > Raw Sourceor alternatelyOption-Command-Ufrom the keyboard. This will bring forward a new menu with the entire plain-text content of your message, including extraneous information such as headers.If you search this Raw Source version of your message using
Command-ForEdit > Find > Find…from the menu, the search will include everything in the message, including the headers.