I'm helping a buddy and I don't know what's going on but he has NUMEROUS problems sending/receiving thru his companies email. He uses the Apple Mail and it seems to work sometimes but it's very frustrating to figure out what's going on. Once he sends an email he'll have to select some other outgoing mail server in order to get it sent. He'll get a message saying, "The certificate for this server is invalid. You might be connecting to a server that is pretending to be "mail.xxxxxxxxxxxxxx.com which could put your confidential information at risk. Do you want to connect to the server anyway" Ideas?