Can not deliver pool notifications to Microsoft Teams

We have configured Load Balancing Pools health notifications to few e-mail addresses. They are correctly delivered to personal mailboxes (within MS Exchange) or mail lists. But we are not able to deliver them to MS Teams.

Each team in Microsoft Teams has an e-mail address (looks like [email protected]). We use it for notifications from variety of other services. But e-mails with pool health changes from Cloudflare are not delivered.

Do you think these messages can be blocked by anti-spam?