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  1. TerryHobart

    Odd issue

    I have a Debian 8 ISPConfig server running postfix. It's been running fine for over a year. Now we have one company we can send to but not receive from. In the mail.log I find a rejection: postfix/smtpd[6573]: NOQUEUE: reject: RCPT from mail.xxxxx.com[207.999.88.777]: 450 4.7.1...

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