I saw the following error with a client the other day when sending emails from the client to any of the Virgin Media owned consumer ISP email addresses (virginmedia.com, ntlworld.com, blueyonder.com etc.) mx3.mnd.ukmail.iss.as9143.net gave this error:vLkg1v00o2hp5bc01Lkg9w DMARC validation failed with result 3.00:quarantine In the above, the server name (…as9143.net) might change as will the value […]
Category: spoof
Using Office 365 or EOP to protect your email and worried about spoofed emails? Then try this cmdlet in Remote PowerShell for EOP: PS C:\Users\brian.reid> Get-SpoofMailReport Date Event Type Direction Domain Action Spoofed Sender True Sender Sender IP—- ———- ——— —— —— ————– ———– ———14/04/2016 00:00:00 SpoofMail Inbound GoodMail no-reply@domain.com mandrillapp.com 198.2.186.0/2418/04/2016 00:00:00 SpoofMail Inbound […]