I like that it is easy to use, very accurate in its verification process as well as being inexpensive compared with other services out there (such has Spamcop). It does not have an option for customizing spam filters or whitelisting certain emails/domains which could be helpful if you are looking at this product solely from those perspectives of customization vs price point. If your organization can afford using multiple email providers then maybe look elsewhere but otherwise just stick around - their prices aren't too bad either! We're solving two problems here; 1) we don’t want our clients sending mass amounts of SPAM through us 2), they need verifiable identities so people know who's legit & 3.) when someone signs up w one provider such as Gmail etc., how do i make sure he / she actually uses his @gmail address? With truemail all these.