This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Hi,
I keep getting an 'unverified sender' message in Outlook (desktop and web app). I've added the address to 'trusted sender' and I've whitelisted the domain but still keep getting it.
The sender is 'trusted' and a reputable domain.
Is there anything else I can do on my side or is it down to the sender?
Many thanks,
Charlie
Using New Outlook on Windows for personal email, calendar, and contact management
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Thank you for your response. I understand why it is there. That was not my question. You did not respond to what I asked.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(16, 12%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ER6%3C/text%3E%3C/svg%3E)
I'm the 365/Exchange admin where I work. I left that setting enabled. It's to protect users. I don't care if my users scream and cuss at me. So far no one complains, btw. They don't understand the feature is there to flag phishing/spoofing email. It is sender's responsibility to fix their domain DNS records (DMARC, SPF, DKIM) so they won't be detected as unverified.
We turned this off about a month ago, and the issue appears to have stopped for now. Can't confirm if it was this change or if Microsoft changed something on their end.
The response we received from support and PG, after much pushing was to :
disable Email and collaboration> Policies & rules> Threat policies> Anti-phishing> (On your policy disable)> Unauthenticated senders symbol (?) for spoof.
We have not verified or tested this as yet.
Now it seems that email spambots are taking advantage of this to send countless emails to my Outlook inbox. This is a mess, and you must consider removing this "feature".