Security News > 2023 > October > Microsoft 365 email senders urged to implement SPF, DKIM and DMARC

In the wake of Google's announcement of new rules for bulk senders, Microsoft is urging Microsoft 365 email senders to implement SPF, DKIM and DMARC email authentication methods.

"These Domain Name Service email authentication records verify that you are the legitimate sender of your email and prevent spoofing and phishing attacks," Microsoft noted.

To make sure their emails are delivered and not rejected or marked as spam by email service providers such as Gmail, Yahoo, AOL, Outlook.com, Microsoft 365 email senders should authenticate their emails with SPF, DKIM and DMARC domain authentication tools.

Microsoft made sure to note, using Microsoft 365 to send bulk email is not a supported use of the service.

" has strict outbound spam controls that can block or segregate your email to a special high-risk delivery pool if it exceeds sending limits," the company explained.

"Following these recommendations does not guarantee delivery. If your email is rejected as bulk, send it through on-premises or a third-party provider instead," Microsoft concluded.

News URL

https://www.helpnetsecurity.com/2023/10/09/microsoft-365-bulk-email/