adrecal
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[Solved] Autodiscover in Hybrid O365 - Exchange 2010
Hello :)
I have a Hybrid Office365/Exchange 2010 configuration. If I create a new mailbox on Exchange 2010 (onpremises) my autodiscover works fine inside my organization. If I configure this onpremises account on my Android phone its works fine (changing mail server from outlook.office365.com to mail.mydomain.com)
BUT....:
Outside my organization when I configure my Outlook 2016 (VLSC version, not Click to run version) and put my email and credentials a Office365 window pop-ups and my credentials are not accepted.
My question: all new onpremises created mailbox (exchange 2010) need to sync to Office365 cloud too (even without license)??
I have a Hybrid Office365/Exchange 2010 configuration. If I create a new mailbox on Exchange 2010 (onpremises) my autodiscover works fine inside my organization. If I configure this onpremises account on my Android phone its works fine (changing mail server from outlook.office365.com to mail.mydomain.com)
BUT....:
Outside my organization when I configure my Outlook 2016 (VLSC version, not Click to run version) and put my email and credentials a Office365 window pop-ups and my credentials are not accepted.
My question: all new onpremises created mailbox (exchange 2010) need to sync to Office365 cloud too (even without license)??
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where does the user mailbox reside? is the mailbox on-prem or o365?
ASKER
Michelangelo, you did the trick!!
Do you think I had followed this documentation of the DNS and had not noticed the observation about the hybrid environment?
To simplify:
Hybrid Office365/Exchange (2010, 2013, 2016...) NOT change your external DNS CNAME to autodiscover.outlook.com until you have all your mailbox on cloud.
Resolution: Revert back my external DNS (Linux Bind, blahrg) autodiscover CNAME to:
autodiscover TTL 3600 CNAME mail.mydomain.com (where mail.mydomain.com is my external url point to OWA)
Thanks guys, thank you Michelangelo. :-)
Do you think I had followed this documentation of the DNS and had not noticed the observation about the hybrid environment?
To simplify:
Hybrid Office365/Exchange (2010, 2013, 2016...) NOT change your external DNS CNAME to autodiscover.outlook.com until you have all your mailbox on cloud.
Resolution: Revert back my external DNS (Linux Bind, blahrg) autodiscover CNAME to:
autodiscover TTL 3600 CNAME mail.mydomain.com (where mail.mydomain.com is my external url point to OWA)
Thanks guys, thank you Michelangelo. :-)
ASKER
Resolution: Revert back my external DNS (Linux Bind, blahrg) autodiscover CNAME to:
before:
autodiscover TTL 3600 CNAME autodiscover.outlook.com.
after:
autodiscover TTL 3600 CNAME mail.mydomain.com. (where mail.mydomain.com is my external url point to OWA. Look at final point ".")
before:
autodiscover TTL 3600 CNAME autodiscover.outlook.com.
after:
autodiscover TTL 3600 CNAME mail.mydomain.com. (where mail.mydomain.com is my external url point to OWA. Look at final point ".")
Glad to have helped!