Questions about Hybrid Mode - 500pnts

Ok so I am going from Exchange 365 to Exchange 2013 on premise server, I am considering using Hybrid mode but I have some questions.

1.) Once I run the Hybrid Wizard I take it 365 and on premise will be linked, but will my 365 users be affected? Will they still be able to send and receive email as before?

2.) Do I need to enter a Send connector for the on premise users\server?

3.) Do I need to change any MX records?

4.) Can I then migrate my 365 user back to Exchange 2013

5.) What happens when I cancel the 365 subscription which is ultimately what will happen.
Ian PriceIT ManagerAsked:
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Peter HutchisonSenior Network Systems SpecialistCommented:
It will send the message to Office 365, if the mailbox is there then it will deliver to the office 365 a/c, if not it will then use the outbound connection and route it to your on premise exchange and check if the mailbox is there, if so it will delivery it there. If no mailbox is found, then a NDR is sent.
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Peter HutchisonSenior Network Systems SpecialistCommented:
1. Yes, they will be linked be able to share calendars, address book and send and receive mail.
2. No, the hybrid wizard will auto create inbound and outbound connectors for you.
3. It depends, if your primary mail servers will be on premise then you should point to to your Edge Transport servers. If the domain is split between o365 and on premise then you need to configure the email domain as a Internal Relay domain rather than authoritative.
4. Yes, you will use the MRS feature on the CAS servers to allow mailbox moves.
5. You will no longer have any o365 accounts and mail will no longer go there.
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Ian PriceIT ManagerAuthor Commented:
Excellent

Just to confirm one point you said

"3. It depends, if your primary mail servers will be on premise then you should point to to your Edge Transport servers. If the domain is split between o365 and on premise then you need to configure the email domain as a Internal Relay domain rather than authoritative."

It's going to be split to start with so - Where would I configure the Internal Relay? 365 or on premise?

Thank You

Ian.
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Peter HutchisonSenior Network Systems SpecialistCommented:
If MX is pointing to on-premise then configure Internal Relay on the email domain on the On-Premise Exchange site. I do not think you can change this setting on Office 365.
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Ian PriceIT ManagerAuthor Commented:
Ok so what about if the MX records are currently pointing to the 365 domain - will I still be able to send and receive mail from the on premise serer?

Thank for your help...I will award you the points etc
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Peter HutchisonSenior Network Systems SpecialistCommented:
Correction. Sorry, you can change it on Office 365, I was looking in the wrong section.

See Exchange Admin, Mail Flow, Accepted Domains to make the change, then you can leave MX pointing to Office 365.
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Ian PriceIT ManagerAuthor Commented:
Ok so if I change wiseman.co.uk to an internal relay my 365 client who are linked to wiseman.co.uk will still receive emails?

Sorry if that a stupid question I just need to make sure

Thank you
Ian.
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Ian PriceIT ManagerAuthor Commented:
Excellent thank you for your help
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Ian PriceIT ManagerAuthor Commented:
Explain perfectly
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