Civil procedure — Case management conference — Failure to appear — Case dismissed after plaintiff’s counsel failed to appear at case management conference due to the order allegedly going to counsel’s email junk folder and getting deleted without being seen — Dismissal of case is reversed where order setting rule 1.200(a) case management conference was sent out before defendant had been served with process and conference was set on a date prior to the time when responsive pleadings or motions were due — Denial of relief from order of dismissal reversed where it was reasonable for plaintiff’s attorney not to anticipate any orders while time for execution of service of process remained and court attempted service of order on only one of three people designated by plaintiff to receive service