Forum Discussion
Firebase authentication emails are blocked by Office 365
Many of my customers are recently not getting any authentication emails from my apps anymore. The DKIM keys are setup, authorized senders and so on. The authentication emails do go through to non...
hiKidd_Ip
yes but I get the answer "We were unable to identify anything on our side that would prevent your mail from reaching Outlook.com customers."
I have tried sending to my own @outlook.com account, and it goes through. But none of the business customers get their authentication emails.
(I have a list of several problem domains all resolving to a *.mail.protection.outlook.com. mail exchange, but don't feel I can share the domain list on a public forum)
