Exchange server 2016 Autodiscover not working

I created a test exchange server 2016 (internal only) but Autodiscover is not working.
I tried troubleshooting but was unsuccessful.
please advice.
vibinsathyanAsked:
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Saif ShaikhServer engineer Commented:
Did you installed SSL certificate on exchange server or are you using auto-discover internally?
Saif ShaikhServer engineer Commented:
Do post the error which you are getting.

Are you trying to configure outlook 2016 or running some test like test-exchangewebservices?
vibinsathyanAuthor Commented:
I Am trying to configure outlook.
I can manually configure with IMAP/POP3 but autodiscover is not working.
Connection is being established but it hangs on searching for email@domain.com
Will show error to retry with unencrypted setings but will not succeed.
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vibinsathyanAuthor Commented:
I am trying internally only - not installed any certificate.
Saif ShaikhServer engineer Commented:
Outlook 2016 connects using autodiscover so you need to purchase an SSL certificate with autodiscover SAN name in it and a host A record needs to be added in public DNS.
vibinsathyanAuthor Commented:
But I need only to connect internally..It is not working through public DNS..
vibinsathyanAuthor Commented:
I tried with Outlook 2013 and it is working fine.
Any workaround for Outlook 2016 for conencting autodiscover.
SysToolsData Expert - Recovery,Backup,MigrationCommented:
Check Out this Link, to find the solution :

1. Do I need to add the Autodiscover name to my SSL certificate?
2.  Do I need an Autodiscover name for all of my SMTP domains in my SSL certificate?

https://webcache.googleusercontent.com/search?q=cache:ap2EVfE731UJ:https://practical365.com/exchange-server/exchange-2010-faq-autodiscover-names-ssl-certificate/+&cd=1&hl=en&ct=clnk&gl=us
vibinsathyanAuthor Commented:
Outlook 2016 is also working fine now but only making default DNS server to Exchange domain DNS (In my case same Exchange Server).
I tried putting A, CNAME , MX and SRV record for the exchange server but not working.
Actually setup is working fine but after outlook restart it will show error as folders cannot be updated.
Pete LongTechnical ConsultantCommented:
Delete everything apart from the SRV record
Exchange AutoDiscover Errors – Creating an AutoDiscover SRV Record
vibinsathyanAuthor Commented:
I tried deleting all records other than srv but not resolved the issue.
Exchange autodiscovering is working and adding the account but after that it will ask for restart outlook.
But then it will show error for ost as folders cannot be updated.
vibinsathyanAuthor Commented:
I resolved it using DNS entries with SRV record as well as A record with new self signed SSL certificate applied including autodiscover.xxx.com

In our case, we found the Autodiscover not working with Fortigate proxy server configuration(needs to put exception) and Symantec also blocking the autodiscovery.
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