I posted in this section because my first question is regarding UebiMiau on ISPConfig. I am running the Perfect OpenSUSE 10.2 Setup. When attempting to send email outside my domain from UebiMiau I receive the error: I would probably be more freaked out about this, but when I use a mail client (thunderbird, outlook, etc) I have absolutely no problem sending email. Except to Hotmail and Yahoo., which leads into my next question. I am fairly certain that I'm sending out to Yahoo, but it is using the greylisting method and forcing a delay. Hotmail on the other hand does not seem to be receiving my messages at all. My log reports: But no one ever receives the messages. And my spf records don't seem to functional on any of my domains. You can use www.frankentech.org to check spf on. I also read that I may need to email webmaster at hotmail to get my domains allowed. Is this true? Would it be the same for yahoo? The record reads: I appreciate your help with this.