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zippo7062005's avatar
zippo7062005
Copper Contributor
Oct 12, 2020

Office 365 Migration to another tennant

We have an aquisition for another company we need to move into our tenant.  They currently have 365 as well

us- tenant 1 with companya.com email addresses

their - tenant 2 companyb.com email addresses 

 

Can we have say 10 users at a time connect to tenant 1 but send/receive as companyb.com.  ie, we set the spf record and fwd their mail in tenant 2 to tenant 1.  Maybe some trickery w/ adding their companyb.com as a non-internet upn, setting spfs and fwd their tenant mailboxes to our tenant.

 

Can't be the 1st person to do this, so looking for advice.

 

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