If you meant wildcard for receiving ... well ... few people can tolerate such a thing these days. The first brute force address guessing attack means you get everything they send. Then you get all the spam to those zillions of valid checked addresses.
Wildcard available for sending...
If you meant wildcard for receiving ... well ... few people can tolerate such a thing these days. The first brute force address guessing attack means you get everything they send. Then you get all the spam to those zillions of valid checked addresses.