Forum Discussion

Andrew Reynolds's avatar
Andrew Reynolds
Copper Contributor
Jan 17, 2018

Outlook error when doing a search

when doing a search "in current mailbox" or other I get an error   "Something went wrong and your search couldn't be completed" It looks like there's a problem with your network connection Le...
exchange
AlexRomain's avatar
AlexRomain
Copper Contributor
May 13, 2020

woonks 
hi !

What do you mean by DNS block ? Did you redirect 'outlook.office365.com' to your local server using DNS ?

Thanks a lot for your answer !

woonks's avatar
woonks
Copper Contributor
May 14, 2020

AlexRomain 

 

I blocked my internal DNS servers from resolving outlook.office365.com.

Various ways to do this, easiest is create an empty DNS authoritative zone outlook.office365.com to blackhole the dns requests.

 

Be warned, this may break some Outlook365 webmail functions. The download attachments function couldnt work due to unable to resolve attachment.outlook.live.net, which actually just a CNAME to outlook.office365.com.

 

But at least, your office outlook users will stop the persistent calls for support......

 

 

 

 

 

 

  • Semyonoff's avatar
    Semyonoff
    MCT
    May 28, 2020

    AlexRomain If you are saying about registry fix

    DisableServerAssistedSearch

    Make sure to copy its name without trailing space. Restart outlook then. 

  • dztek79's avatar
    dztek79
    Copper Contributor
    May 15, 2020
    Hi,
    don't know why, but some clients apply these settings fast, some other very slow.
    After the gpo/registry is set, it takes some time while outlook is open until it recognize the change.
    Seems there must run the autodiscover procedure once...
  • AlexRomain's avatar
    AlexRomain
    Copper Contributor
    May 15, 2020
    Hi,

    Doesn't seem to work here 😞
  • dztek79's avatar
    dztek79
    Copper Contributor
    May 14, 2020

    Hey,
    use AutoDiscovery paramter ExcludeExplicitO365Endpoint instead blocking via DNS.
    Either via GPO (newest admx templates) -> User Template Outlook 2016 -> Account -> Exchange -> Disable Autodiscover (Subtype O365 Autodiscovery)
    Or Registry:
    HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Outlook\AutoDiscover or
    HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoDiscover
    DWORD:ExcludeExplicitO365Endpoint = 1

    This also resolve the the acutal search problem since Version 2004 😉

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