How To Block/Reject Email From Or To A Specific Address Using Postfix On CentOS
erics, June 3rd, 2011 By default, the Postfix SMTP server accepts any sender address. You block email addresses using the sender_access file:
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# cd /etc/postfix # vi sender_access baduser@baddomain.com REJECT # postmap hash:sender_access # vi recipient_access baduser@baddomain.com REJECT # postmap hash:recipient_access # vi main.cf smtpd_sender_restrictions = check_sender_access hash:/etc/postfix/sender_access smtpd_recipient_restrictions = check_recipient_access hash:/etc/postfix/recipient_access (make sure these are the FIRST entry on the lines) # /etc/init.d/postfix restart |
Categories: How-To's, Technology Block, CentOS, Email, howto, PostFix, Receiver, Reject, Sender, Spam, tips
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