It appears that someone has forwarded their SAC-Announce subscription to a PayPal E-mail address (it's been that way for awhile). There is no way to resolve this except by trial and elimination or removing everyone and have them resubscribe if they want to continue receiving E-mail. I prefer the latter, since the bounceback from PayPal contains no information from the rejected message. If there are objections, please let me know ASAP. -Paul