On our business directory, we get a lot of users registering with a emailsz (dot) com address. Lately, e-mails sent to most of the addresses have started bouncing (mailbox full, e-mail doesn't exist, delivery failed after 10 attempts, etc.) several months after registration.
Does anyone else have experience with users using emailsz addresses? I hate to start blocking legit users. But I also hate continuing to allow bad users.