
Click on Setup (1), select Domains (2), click the Domain name (3), copy the MX Points to address or value (4).
#Send email as alias office 365 how to
If you don’t know how to find your MX endpoint URL, here’s a quick tutorial: This is to update your SPF record and avoid your messages getting flagged as spam (optional but recommended)

Ramping up the complexity a bit is the Direct Send option. TCP Port 587 or 25 must be open to Office 365 from the client.PowerShell (or another client) must be able to resolve and reach.

This email address will appear as the sender of the message. Have an Office 365 user mailbox (licensed).To use SMTP Authenticated Submission, you must: But the address must be from one of your verified accepted domains. This option allows you to use any sender address.

There is no extra action to do in Office 365 to allow this. You would choose this option if you plan to send emails from a device or application to recipients inside and outside your organization. SMTP Authenticated Submission is the easiest to set up. Those options are Direct Send and SMTP Client Submission or SMTP Authenticated Submission. Office 365 has two supported ways to send email. Before we get too far into the PowerShell, know that there’s not just one way to send email through Office 365 using PowerShell.
