I have been running across the same issue with MS Word on El Cap machines no matter if I run the .pkg directly from Microsoft or through the Self-Service tool. I have yet to find a solution online for this issue.

Try deleting the login keychain.... I had that issue b4 and it fixed it for me

Try this.

#!/bin/sh
security delete-generic-password -l "Microsoft Office Identities Settings 2" login.keychain
security delete-generic-password -l "Microsoft Office Identities Cache 2" login.keychain
security delete-generic-password -G "MSOpenTech.ADAL.1" login.keychain
security delete-generic-password -l "Exchange" login.keychain
security delete-internet-password -s "msoCredentialSchemeADAL" login.keychain

We've ran into this issue on a Sierra computer running 10.12.4. Will try these fixes, thanks guys!

A few things to try. Delete/recreate the user account. Downgrade to previous patch. Talk to microsoft (lol). Last resort reimage. Also don't post huge crash logs.

(Sorry about the long log, I deleted the threads.)
I've deleted the user cache, the application cache, the entire apps, anything related to Microsoft on the Mac. That didn't solve the issue.

I'll let you guys know if what app2pack posted works.

Check for multiple MSOpenTech.ADAL.1 in keychain access. You need to remove each of them.

Microsoft has shown interest in figuring this out. If you have contacts or the ability to open a ticket, do so to help the greater good.
They suggested searching for 'helpshift' in the Keychain and removing any entries for that and relaunching the application.

HelpShift is used for the "Contact Support" functionality.

-Eric

Does this happen under a different user account on the same machine?

I have still not found a fix for this issue either. It is only currently affecting one of our machines though. The user has been using the web app without issue. I've looked through the keychain and there is an exchange password for their email, skype for business password (which works), but nothing else related to Microsoft and none of their Office 2016 for Mac suite will open. I haven't been able to devote a whole lot of time on this but I'm still looking into it when I have a chance. Thanks for your input and hope you get your issue resolved @dcappelle.

I have opened a case with our Microsoft representative to see if we can get some insight to what is going on.

Hey guys, I have some updates for you.

Try this.

!/bin/sh

security delete-generic-password -l "Microsoft Office Identities Settings 2" login.keychain security delete-generic-password -l "Microsoft Office Identities Cache 2" login.keychain security delete-generic-password -G "MSOpenTech.ADAL.1" login.keychain security delete-generic-password -l "Exchange" login.keychain security delete-internet-password -s "msoCredentialSchemeADAL" login.keychain

One of those commands worked - security delete-generic-password -l "Exchange" login.keychain
No changes in Outlook, still crashes.

I did not test a different user, I will later tonight when the user is not on his computer.

helpshift was not in the keychain. I didn't want to delete the entire keychain yet.
MSOpenTech.ADAL.1 also was not in the keychain.

This computer is running 10.11.6, not Sierra.

Another update! I was working with our guy that would put in a Premier ticket for us to Microsoft. He found a new forum where Microsoft is acknowledging the issue.

Here is the thread for it: https://answers.microsoft.com/en-us/msoffice/forum/msoffice_outlook-mso_mac/outlook-for-mac-crashes-2-seconds-after-launching/aa35f99c-9e35-48ff-9389-c8bbe6433a39

It was only posted last week.

There are a couple solutions in it (Deleting the Keychain has not fixed their issue) that may have worked.
I'm going to test them, then report my findings to you guys.

Thanks!

Thanks for the heads up on that thread @dcappelle. I posted on it to see if I get a response. We are primarily Mac so we don't have a Microsoft contact. I'll post if I get a response, however, it looks like most of the fixes in the thread have already been tried. Thanks again!

@dcappelle @egill I had the same issue on my Mac where Outlook was crashing at every launch with an entry in the crash log that showed the Blame Module was HelpShiftOSX.

In my case I found it was due to the fact that I had created a second Keychain, we'll call it "Test", located somewhere else other than ~/Library/Keychains/ AND set that "Test" Keychain as my default AND I deleted all HelpShift entries, since I didn't know what they were for at the time, from the login keychain. When ALL of those conditions are met I get a consistent crash. It appears the problem is that for some reason in that specific state Outlook can't recreate the HelpShift keychain entries and crashes.

In the hopes that it will help, here are the steps I came up with to consistently recreate the issue on a clean test Mac.

Instructions for replicating
1. On a clean Mac, open /Applications/Utilities/Keychain Access.
2. Select File>New Keychain…
3. In the new Keychain window, name the keychain something like "Test". In the "Where:" drop-down list, select Desktop. This is very important because when leaving the new keychain in the default Keychains folder the problem does not occur.
4. Click Create….
5. Enter a password for the new keychain and click OK.
6. Right-click on the newly created Test keychain and select Make Keychain "Test" Default.
7. Install Office 2016. If you have access to the standalone Outlook 2016 installer you could just install Outlook.
8. Launch Outlook 2016.
9. Notice it will show the Outlook first run/welcome window without any issue. Click Get Started. Click Continue>. Click Start Using Outlook. At this point it will crash.

Steps to fix the crash
1. In Keychain Access, right-click on the login keychain and select Make Keychain "login" Default.
2. Launch Outlook 2016.
3. Notice that it no longer crashes and displays the Set Up Your Email window.
4. Walk through setting up an Office 365 account.
5. In the login Keychain, there will now be four HelpShift entries.

Of note, now that the HelpShift entries exist, you could switch back to using the "Test" keychain as your default keychain and Outlook will launch without crashing since the HelpShift entries exist. In this configuration one of the HelpShift entries actually disappears leaving you with only three entries. If you delete the HelpShift entries at this point the crashing will occur again and you will need to walk through "Steps to fix the crash" again.

I have been in contact with Microsoft Support and they are able to recreate the issue using these steps, so hopefully they will have a fix soon.

Hello, does anyone know if latest "insider fast" 15.36 (170524) fixes the problem?
I could not find a fix other than reverting to 15.32
Mnay thanks to all
Carlo