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reject_unknown_helo_hostname
service postfix restart
hi rafaballack,maybe you set "Reject Unknown Hostname" in postfix manager menu,try to find and comment # this lineCode: [Select] reject_unknown_helo_hostname in /etc/postfix/main.cf an thenCode: [Select]service postfix restart
smtp 450 failed to add recipient 4.7.1
try to find and comment # this lineCode: [Select] reject_unknown_helo_hostname in /etc/postfix/main.cf an thenCode: [Select]service postfix restart