MacOS – Yosemite upgrade causing Mail to crash

You can go to Apples web site and download the updates manually. The downloads site is:

http://support.apple.com/downloads/

Once there, go to the "Search Downloads" "10.6.8" update. You can download either the combo (for people who haven't updated much) or the last, which was just for the 10.6.7 to 10.6.8. You might want to find specifically which update made the changes.

What I would try is the following:

1. Move Mail.app back to /Applications
2. Perform the manual update(s) from the downloaded update

IF the download allows you to go through the packages and you can find out which package mail is in (the names aren't always straight forward) you could probably do a manual update using only that package.

This might be risky, but you could try actually doing the full update on the system. In the PAST, you could do that and it would ignore any updates that superseded what's in the package or already installed and only install those components needing update. I don't write Apple's update software so that might be risky.

Hope this helps.

I was having the problem where a couple of events on Google Calendar simply did not show up on Mac Calendar. I went into the event on Google Calendar and edited it - say, I changed the title slightly. This somehow "flushed" the event through and it showed up in Mac Calendar.

I noticed this problem arose after I decided to re-link my Google account to my Mac since I was having issues with certain contacts not showing up when I wanted to compose a message in Mac Mail. Per Google's instructions I re-introduced the Google account as a CardDAV account instead of simply as a Google account. Not sure this has fixed the contacts problem but it did create the problem above with Calendar sync.

So for me editing the event in question fixed the problem. But for the bigger problem described by @Michelle Wedd I do not necessarily have an answer. Maybe she can provide an answer if she has been able to fix the problem.