Can't spend any more time on this - life is too short. I know this is not a good solution, but until Apple solves this problem (if ever), I find it the only practical solution.īTW, Spotlight also does not search mail correctly despite having attempted to re-index my drive in the two different methods suggested - by adding and removing from the Privacy tab in Sys Spotlight Prefs AND by using the mdutil commands in Terminal. On the MacAir I have now abandoned Mac Mail and installed Thunderbird mail which runs perfectly.

This machine has absolutely no problems with Mac Mail or anything else. I am also using a Mac Pro ( 5,1) mid 2012 which I have not upgraded to High Sierra (and probably never will) which runs Mac OS 10.12. I have spent literally many many days on this problem. I unfortunately upgraded my MacBook Air (11 inch, 4,) to Mac OS 10.13 (High Sierra from 10,12) and Mail search immediately stopped working. I have tried all of the suggestions listed here and in every other post relating to the failure of Mac Mail to search correctly. It will then open and uncompress like other archive format or launch Unarchiver and just drag and drop the 7z files to the utility.Hi Classysailing and every other frustrated Mac mail user:

The moment that you’ve associated the Unarchiver with.

Launch the Unarchiver and there you’ll find the file association list, inform the Unarchiver to associate it with.

As soon as The Unarchiver app finishes installing, open it and you will see the file association list.The app is relatively small so you should be able to get it installed for a few seconds depending on your internet speed.You can either download it from the Mac App Store or click here for direct download. The latest version is 4.2.2 and support macOS 10.7 or later. Don’t worry, it is easy and quick to do even it gets an error cannot open a file as archive sometimes. 7z archive files regardless of what version of Mac OS you are using. Keep on reading as we are going to walk you through on the steps for opening.

Archive mac mail sierra