email flow sending from domain query

Ajit Terdalkar 96 Reputation points
2022-02-11T04:33:59.037+00:00

Hello,

Requirement :
We have a pc which is logging in to domain1.com
The email address of the mailbox is test1@keyman .com
Requirement : The email should be sent from user2@domain2.com
This domain2.com is not there in accepted domain in the environment of domain1.com
Both the domains reside in different environment.

We can check to add both these mailboxes in same outlook profile however how the emails sent from test1@domain1.com will be sent as user2@domain2.com

Thanks and Regards,
Ajit

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Andy David - MVP 142.2K Reputation points MVP
    2022-02-11T12:23:44.443+00:00

    This is not possible if domain2.com is not an accepted domain in your org.

    Generally, The only way to send as another domain like that is to send the messages anonymously and essentially spoof that domain. Outlook /OWA "Exchange" clients do not allow that.

    Using POP or IMAP - if your SMTP settings allowed it, it may work as well, but since you are spoofing the message it may fail authentication checks on the recipient side and not be delivered regardless.

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  2. KyleXu-MSFT 26,211 Reputation points
    2022-02-14T01:46:37.86+00:00

    @Ajit Terdalkar

    If you want to send emails from one email address, you need to set this email address as "Reply Address" (Each mailbox only could have one reply address, you also need to add that domain as accepted domain on your Exchange server).
    173898-qa-kyle-09-36-25.png

    Both the domains reside in different environments.

    Based on your description, these two domains are real domains. Why not configure two mailboxes into one Outlook profile?

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