What are you asking? The feature is already available. See:
https://techcommunity.microsoft.com/t5/exchange-team-blog/sending-from-email-aliases-public-preview/bc-p/4124467/highlight/true#M38886Note:RE:
Exchange Admin Center > (Left menu) Settings > Mail flow > (Area
"General") activate "turn on sen...
Hi @IanMcDonald, thanks for the response. One more question, please.Who
is considered to be a user external to the organization? Is it a person
from a different domain than my tenant has registered? Or can it be a
person with mailbox hosted outside the exchange organization but using
the same domain...
We've set up the HVE account, and set up a Conditional Access Policy
targeting this account to block sign-in to all cloud apps for any
location except for the excluded IP address ranges.A couple of
problems:1. I can still authenticate and send from an IP address not in
the excluded range.2. I don't ...
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