Forum Discussion

Copper Contributor

Jan 03, 2017

Outlook for MAC login prompt

Hi, I was recently migrating a customer from Syndication to CSP account(They didn´t wanna wait for MS migration and wanted to change their default domain). Everything went smooth and they are up ...

office 365

Outlook

Vincenzo Annunziata
Jan 05, 2017
Microsoft working on a fix as soon as tehy can!
In the meanwhile I have a workaround which should help you.
1. Go to KeyChain Access
2. Search "Exchange" under Login --> All Items and delete everything
3. Search "Office" and delete everything
4. Search "ADAL" and delete everything
5. Launch Outlook
6. You will get the activation prompt and then If account is already added you will see the password prompt for app and ADAL again.
Please do 2-Factor Authentication if asked to and you should be able to login. After this on each launch you will not face the issue temporarily.
This is not a permanent fix but will help for a little bit.

Vincenzo Annunziata

Iron Contributor

Jan 05, 2017

Microsoft working on a fix as soon as tehy can!

In the meanwhile I have a workaround which should help you.

1. Go to KeyChain Access

2. Search "Exchange" under Login --> All Items and delete everything

3. Search "Office" and delete everything

4. Search "ADAL" and delete everything

5. Launch Outlook

6. You will get the activation prompt and then If account is already added you will see the password prompt for app and ADAL again.

Please do 2-Factor Authentication if asked to and you should be able to login. After this on each launch you will not face the issue temporarily.

This is not a permanent fix but will help for a little bit.

Martin Front
Copper Contributor
Jan 05, 2017
This workauround works. The customer tried this in Monday and it works for them now!

Thanks for the detailed guide for other people if they experience this issue!
RobOK
Bronze Contributor
Jan 12, 2017
This worked for me.
- Jim Szymborski
  Copper Contributor
  Jan 12, 2017
  We are starting to see this a lot since the return of everyone from holiday.
  I have well over 800 users using outlook for mac 2016.
  Deleting the keychain entries mentioned resolves the issue but the call volume for the problem is increasing.
  Is anyone aware of what changed to cause the issue?
  Window server 2012 r2 ADFS
  - RobOK
    Bronze Contributor
    Jan 12, 2017
    It just started for me the past several days, where I could not login to Outlook (mac client) at all. It had never happened before. I am not sure what caused it .