setup office 365 outlook profiles without autodiscover in place

I'm migrating to office 365 this weekend from on premises exchange, I only have 10 accounts to move, and decided to just export to pst and import within outlook to the new O365 profile.
I had arranged with the 3rd party who control the DNS to add the required autodiscover and other DNS items yesterday. With which, they have not done.
Meaning i have all my data exported but not able to upload the data, as i can't make the profiles using autodiscover.

At the moment the MX is controlled via our spam filter and has been pointing to O365 from when the DNS should have been changed.
I have 24 hrs of emails going into O365 mailbox's.

Is there any method you can suggest where i can setup the outlook profiles with out autodiscover in place ?

I have tried using the manual option and office 365 diagnostic tool, which all tell me I can't do it with out autodiscover.
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total123Asked:
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Vasil Michev (MVP)Commented:
Manual configuration is not supported, but you should still be able to make it work by following the instructions here: https://www.michev.info/Blog/Post/1499/
It's important to understand that Outlook uses Autodiscover for more than just configuring the profile, so you need to sort the DNS issue as soon as possible.
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Saurabh YadavMCPCommented:
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total123Author Commented:
worked perfectly
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