Yes; it is just one of the things we might look at and ask you to tell us what the entries are if there is you can’t send or receive mail. But usually there are no problems in the setup if directions are followed. A couple of other questions. What is your OS? What AV were you using before Avast! and how did you remove it? What firewall are you using? Problems we see (and there are not that many) are often related to interference from other security products, not the actual setup.