New problem appeared today. I sent an email to a client whose address is firstname.lastname@example.org. It got bounced back as spam. I attempted to get it removed from comcast's blacklist to no avail. They said: "You have been blocked from emailing the Comcast network because we have determined that you are sending email from a dynamic/residential IP within the Comcast domain. Comcast does not allow subscribers to send email from a mail server other than smtp.comcast.net. All mail should be sent through Comcast's mail server." Ok, so here's my scenario. I use comcast for internet access, but I do not use their email. I have my own domain and I host through lunarpages. Apple Mail connects to lunarpages. Up until yesterday, this client was receiving emails. So did comcast just recently flag me? Is there a workaround short of using comcast's mail servers? And is that even an option? I'm not changing my email addressI have my own domain for a reason. Any help greatly appreciated.