Have a customer who sometimes does not get constantcontac.com newsletters because the spamfilter is stop them (DiscardedInbound) Trying to ensure that she gets them all by entering &constantcontact.com but it does not seem to be working. What are the rules regarding what can be put in the Spamfilter Whitelist. ConstantContact.com from addresses keep changing so I need some kind of wildcard capability. Thanks!
Use: @constantcontact.com and not &constantcontact.com A morde detailed explanation is in the manual: https://www.howtoforge.com/download-the-ispconfig-3-manual As howtoforge subcriber, you can download it from that page directly.
