1、查看mapi/http的虚拟目录配置情况
Get-MapiVirtualDirectory | fl auth
在iis中回收MSExchangeAutodiscoverAppPool
2、修改注册表
[HKEY_CURRENT_USERSOFTWAREMicrosoftOffice16.0OutlookAutoDiscover]
“ExcludeHttpsRootDomain”=dword:00000001
“ExcludeHttpsAutoDiscoverDomain”=dword:00000001
参考链接:https://www.systoolsgroup.com/updates/outlook-takes-long-time-to-connect-exchange-server/
https://social.technet.microsoft.com/Forums/Azure/zh-CN/945c4539-380f-4cc1-b89a-c786cfc59dcc/outlook27491223123683025509?forum=exchangeserverzhchs
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