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DaBoo123's avatar
DaBoo123
Copper Contributor
Nov 05, 2019

Outlook 2019 Security Alert for "Certificate"

 

 

When I start Outlook, it starts to check send/receive mail...but I typically get the this security alert. (File is attached)

 

I have tried "install certificate"  for the "current machine"...and let the certificate import wizard "automatically select" a certificate store.  

It says the "import was successful".

 

BUT...I still keep seeing the security alert again and again, when I start up Outlook.

(BTW....the email account is my MS Exchange account at work....which is secure.)

 

Otherwise it gets the mail and info for that account when I hit "proceed"...but why do I keep getting this security alert.  Is there a way of telling Outlook that this account is OK, and not to warn me over and over again?

7 Replies

  • madmartian's avatar
    madmartian
    Copper Contributor
    I have 13 email accounts coming into Outlook and don't do email receiving in the background, so I get prompted THIRTEEEN TIMES every time I check email! It's excruciating. I tried the SupressNameChecks, SuppressNameChecks, and ShowCertErrors fixes, even adding them to each other's keys (both Security and AutoDiscover). None of them worked. Please oh please can someone tell me how to suppress these 13 cert popups every time I check email?
    • Rob2652's avatar
      Rob2652
      Copper Contributor

      syogesh1122 

      I tried to edit the register under the following key:
      HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoDiscover.
      However on my system there is no "AutoDiscover" key.
      How do I switch off the annoying error msg about a certificate? 
      I tried to install one but the message keeps coming up...

  • Ricardo Viana's avatar
    Ricardo Viana
    Steel Contributor
    I would check if this is somehow related with your network. Anyway, you can disable the warning but probably that's not the best idea. Have a look into: https://support.microsoft.com/en-us/help/3211279/outlook-2016-implementation-of-autodiscover

    If you want to disable it here is the regkey:
    Key: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoDiscover
    Value: ShowCertErrors
    Default: 0
    Data: 1 = Show certificate warnings/errors; 0 = Don't show certificate warnings

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