Whitelisting E-mail Senders
My Yahoo webmail client likes to kidnap various incoming e-mails at random. Even if it's a newsletter I read every day, it gets blocked one or more times weekly. Marking things "Not Spam" doesn't help. Is there no way to whitelist my approved senders?
BTW, AT&T "help" is none at all on this topic, or generally as far as I can tell.