


The data is collected from the log files of the inbound Hotmail servers and other servers at Hotmail and Microsoft.Īnalyze your bounces for “mail blocks” coming from Hotmail/Outlook. Sign up for Microsoft’s Smart Network Data Services (SNDS) and see the traffic originating from your IP address such as the volume of sent emails and complaint rates. If a high volume of your mail is considered suspicious, your IP address could be blocked or bulked. The Brightmail technology learns what email is spam from all mail received in their spam trap network. Hotmail/Outlook uses the Brightmail anti-spam content filter. Verify that email authentication related entries (PTR, DKIM, SPF) are correctly set up for your sending domain.Ĭheck your Brightmail IP reputation and request the block removal if you are listed. Review server logs or stats to see if there has been a spike in email volume.Ĭheck your IP with your favorite blacklist lookup tool, for example, GlockApps IP Reputation Monitor.Ĭheck your sending reputation at .Ĭheck for users bulk forwarding email to and related domains. You can follow the steps below to identify if your email practices could lead to the IP blacklisting: Your Hotmail/Outlook Blacklist Investigation Process

How to Remove Your IP Address from the Hotmail/Outlook’s Blacklistīad email practices typically lead to serious deliverability problems like spam placements, blocked and dropped messages which have a direct negative impact on your sender reputation and email performance.
