[shadow=red,left,300]I installed avast! 4 and the mail shield for Eudora. So it set up the e-mail to parrade through the shield. I did not realise this immediately, but when I could not send an e-mail, I realised that avast! was the one that changed the settings. The problem? My ISP requires your return address to match the account they give you. Since the main username had been changed, the return address had too since I had not specified a separate one. I think avast! should either work around this potential problem, or send a flag to notify users[/shadow][/color]