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Trying to get to grips with Exchange Online for the first time, made more painful with using Apple software for mail etc but that aside...
If I have domain1.com and domain2.com how can I setup ******@domain1.com and ******@domain2.com as seperate mailboxes? can setup the first one fine but the second states that ******@domain1.com already exists when trying to create ******@domain2.com
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Hi，@Sandtree
Following up to see if the below answer was helpful. If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.
Hello, @Sandtree
It's been a long time since I've heard from you, have you solved your problem yet? Did my previous reply help you？ If it was useful, you can mark it as an answer. Thank you for your understanding and support.
How are you creating these? You can certainly create two separate mailboxes with two different email addresses. Ensure that each mailbox also has a unique User Logon Name (UPN) that typically matches the primary SMTP Address.
I was trying to create a SharedMailbox, so has just gone to the ExchangeOnline Admin, mailbox and add new shared mailbox
Hi，@Sandtree
Thanks for posting your question in the Microsoft Q&A forum.
According to your description, I have some questions to be conformed.
2.Can you provide a screenshot of the detailed error?
Here are my suggestions:
If you have domain1.com and domain2.com and want to set up ******@domain1.com and ******@domain2.com as separate mailboxes, you need to ensure that the aliases for both mailboxes are unique. This is because Exchange Online does not allow two mailboxes to have the exact same local part (the part before the @ symbol), even if the domain names are different.
If my answer is helpful to you, please mark it as the answer so that other users can refer to it. Thank you for your support and understanding.
It would appear that Apple Mail doesn't support Exchange Online Shared Mailboxes because Apple only support 1 mailbox for each log in, their recommendation for getting around that is to create a second log in as an unlicensed user and use that.
Set up of the mailboxes themselves I was doing online using the Exchange Online admin website. Is there no way around the two alias' being the same? I'm a non-tech person most the time and certainly know corporate clients with such setups but would have no idea if they were using on prep, hybrid or online only Exchange.
I'm looking to migrate our current solution across for our micro businesses and unfortunately both have used the info@ alias and wouldn't want them merging as they have different people involved
Hi，@Sandtree
I am glad to hear from you.
You cannot log into a shared mailbox directly.
Outlook in Windows can choose to access a shared mailbox. Due to the special limitations of Apple Mail, your request may not be met.
So I assume you disagree with @Andy David - MVP above who says you can create mailbox with the same alias as long as they have a different user logon name?
What are your view's on Apple's statement of creating an unlicensed user to access the second mailbox? Obviously has some downsides but more concerned about starting to get bills or having the thing shut down?
To deal with our two info@ boxes I guess I could create another unlicensed user on this instance of Exchange Online for one of them and then have a second instance with just the one domain on with a licensed user.