"Yes." Dumbledore hummed , idly petting Fawkes as the Phoenix curled into his lap. "That is cause for concern mainly on the actions he will follow through on, but then it is also good for us because it means his plans will not be excuted with the meticulousness of one who fears for his being."
Dumbledore saw parallels between Rodolphus and Grindelwald. Not exactly the same in personality, but both no where near the cold desperate insanity of Voldemort.
"So, make contact and let me know as soon as you hear anything." He ordered, and then, before Snape could leave, pushed the candy bowl forward, "Take a lemon drop to tide you on your travel home."