Test with Outlook, they tend to be the most aggressive at hitting links. Gmail is based on some reputation secret sauce or possibly a random number generator. Y

Test with Outlook, they tend to be the most aggressive at hitting links. Gmail is based on some reputation secret sauce or possibly a random number generator. You'll also want to test sending to domains that use FireEye and similar security products. In general: links will get followed, javascript will be executed, buttons will get clicked, and subsequent links will be spidered too.