Changes in server/mail/postfix.xml [9f3382f:26ff6f1]
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server/mail/postfix.xml
r9f3382f r26ff6f1 411 411 To protect your server against the recent SMTP smuggling attacks, 412 412 additional steps are required. Add two lines into 413 <filename>/etc/postfix/main.cf</filename> to disconnect remote SMTP 414 clients that send bare newlines in the DATA section, while also 415 allowing clients on your network with non-standard SMTP implementations 416 to still send mail: 417 </para> 418 419 <screen role="root"><userinput>echo 'smtpd_forbid_bare_newline = normalize' >> /etc/postfix/main.cf && 413 <filename>/etc/postfix/mail.cf</filename> to disconnect remote SMTP 414 clients that send bare newlines, while also allowing clients on your 415 network with non-standard SMTP implementations to still send mail: 416 </para> 417 418 <screen role="root"><userinput>echo 'smtpd_forbid_bare_newline = yes' >> /etc/postfix/main.cf && 420 419 echo 'smtpd_forbid_bare_newline_exclusions = $mynetworks' >> /etc/postfix/main.cf</userinput></screen> 421 420
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