I typically have alerting disabled for the FlashArray in my lab, but needed to enable it today to do some testing for a partner. I spent a bit of time figuring out how to do this with my Microsoft 365 email, so sharing for anyone else who is trying set this up.
Create a Microsoft 365 Exchange Connector
Visit your Exchange Admin Center and navigate to Mail flow > Connectors. Add a new connector.
Specify a connection from "Your organization's email server" to "Office 365."
Give it a name.
Specify the public IP(s) which the SMTP request is coming from. For me this is my lab's external IP address, not the IP of the FlashArray.
Review settings and create connector.
Configure FlashArray Alert Routing
In Purity UI > Settings, edit the Alert Routing settings.
Relay Host: smtp.office365.com:587
Username: An authorized email user
Password: The user's password. If using MFA, you'll need to configure a new app password.
Sender Domain: Must be an authorized domain on your Microsoft 365 account.
Alternatively you can configure this via CLI with the commands...
puresmtp setattr --relay-host smtp.office365.com:587
puresmtp setattr --user-name fa-alerts@jdwallace.com
puresmtp setattr --password *****************
puresmtp setattr --sender-domain jdwallace.comYou can confirm the settings with
puresmtp list
Finally, confirm everything is working with
purealert watcher test myemail@mydomain.com