Office 365 Spoofing

We use Office 365 for our email. We use a program that sends out emails on our behalf to us and our customers. When they are sent back to us, they have the following, '[This sender failed our fraud detection checks and may not be who they appear to be. Learn about spoofing at http://aka.ms/LearnAboutSpoofing]. How do we allow this, so we don't receive the message?
zelfanetAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Adam BrownSr Solutions ArchitectCommented:
Configure SPF records that include Office 365's mail servers and the mail servers used to send messages on your behalf. SPF records take a while to explain, so look at your DNS settings and modify the TXT record that starts with "V=spf1" and add "ip4:<ip of additional server>" before the -all at the end of the record.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Todd NelsonSystems EngineerCommented:
Typically, the TXT record for SPF will need to be configured for your 3rd party senders.  They will traditionally need to add an "include:..." statement to prevent NDRs for those recipients who check for valid senders.

Contact your vendor for your requirements.
0
Todd NelsonSystems EngineerCommented:
Sufficient information provided for resolution.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Office 365

From novice to tech pro — start learning today.