My company recently acquired a license of FB 7 in order to migrate our existing build process. All the tasks seem to work fine, except the Send Email task. It throws the next exception:
I’ve already solved the problem, it was caused by an incorrect text set on the sender address of the Send Email Task settings (perhaps FB 4 was not validating or using it, but FB 7 now does and Exchange Server was not resolving that text to a valid address).