*It appears that Trend Micro has cleared up the issue at this time.*
It has recently come to our attention that some of our clients are having issues with the Web of Trust and Micro Trend services. While we are addressing this issue directly with both of these companies, it is impossible to tell exactly when the issue will be resolved. In the meantime, we have some temporary solutions of our clients who are having trouble with their email campaigns.
The problems created by WOT and Micro Trend only occur when a link in an email is re-routed through our domains. We re-route links so that we can accurately track click-through information for Admail users. Therefore, one way to eliminate this issue temporarily is to turn off click-through tracking on your account. You can either do this for everyone you mail to, or, if you know which clients are having problems because of Micro Trend and WOT, you can put them into a separate interest group and turn off link tracking for their mailing specifically.
We hope that these issues are permanently resolved soon. The blocks that are coming from these services are completely unwarranted. Thank you for your understanding and patience as we deal with this problem.