So you want to know what your sender reputation is? There are a number of online tools that will test your IP address and give you your reputation score. If you do not know what Reputation is, why it is important and what it is all about then you should read this article first.
So to the top tools for identifying your sender reputation are as follows….
SendMail Reputation Tool
Trend Micro, Symantec, Sophos, Kaspersky, Avira and many other mail filters make use of SendMail Repuation data when deciding whether or not your message belongs in the spam folder.
www.sendmail.com/sm/resources/tools/ip_reputation/
TrustedSource from McAfee
TrustedSource is incorporated into all the products across McAfee’s appliance and service suite, as well as into appliances and services of other companies and organizations.
AOL Postmaster
AOL provide a very quick and easy way to see what they consider your current reputation as a mail sender to be on the “AOL Check IP Tool”.
postmaster.aol.com/cgi-bin/plugh/check_ip.pl
Live.com Postmaster
Requires registration, but this is essential reading if you have a proportion of your database using Live.com or Hotmail address’
postmaster.live.com/snds/index.aspx
Outblaze Reputation Check
Outblaze hosts webmail services for several thousand domains, with userbases ranging from a few thousand to several million mailboxes. Their total userbase exceeds 40 million mailboxes. The lookup tool incorporates some major blacklists including the Spamhaus SBL , Spamhaus XBL and the Spamhaus PBL
Barracuda Reputation
Barracuda Central maintains a history of IP addresses for both known spammers as well as senders with good email practices. This information contributes to the Barracuda Reputation System, which gives the Barracuda Spam & Virus Firewall the ability to block or allow a message based on the sender’s IP address. Barracuda is utilised by over 85,000 business worldwide. This includes the US Department of Homeland Security, University of Georgia, Charlotte-Mecklenburg Police Department, countless school districts and tens of thousands of smaller business and governmental organisations.
www.barracudacentral.org/lookups
SecureCloud from Trend Micro
The SecureCloud website allows you to do a reputation check against Trend Micros “Smart Protection Network”. A variety of SME and Enterprise level business’ use this resource for gauging IP Reputation.
Sender Score
Sender Score is a free service offering from ReturnPath. It aggregates data from 60 million mailboxes at a variety of ISPs, spam filtering and security companies. On some level Yahoo!, Windows Live Hotmail, Spam Assassin, IronPort Systems and others make use of SenderScore data. That said you can achieve good deliverability with those ISP’s and still not show on the SenderScore radar.
Still need to check the blacklists
You still need to make sure your not on any of the major blacklists and possibly clean up any listings on the smaller blacklists. To help you identify whether your listed EmailExpert.org has a tool that checks over 100 blocklists to see whether you are listed.


These are great tips that I will try out, I am glad I ran into it. Thanks.