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1 FAQ tagged "smtp_server"

• Postfix blacklist or reject an email address

  Q. I’ve Postfix based CentOS Linux server. I need to blacklist email ID: user@abadboy.com . How do I blacklist email address with postfix? I also have spamassassin software installed.
  A. By default, the Postfix SMTP server accepts any sender address. However you can block / blacklist sender email address easily with Postfix. [...]

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