Hello BoB, Thanks for you kind assistance, your solution opened the SMTP:465 on the postfix server. But when i telnet 587, i can see 220 in response. [root@jet postfix]# telnet localhost 587 Trying ::1... Connected to localhost. Escape character is '^]'. 220 mail.digital-infotech.com ESMTP Postfix (2.6.6) But when i telnet to 465, i do not see 220 in response. is it normal? [root@jet postfix]# telnet localhost 465 Trying ::1... Connected to localhost. Escape character is '^]'. Thanks / Regards > On 3/30/2012 12:49 PM, Prabhpal S. Mavi wrote: >> Hi Dear All, >> >> >> Just updating with the post, following configured Postfix to listen on >> Port 587. Yet to find out, how to enable 465. >> >> >> submission inet n - n - - smtpd >> -o smtpd_tls_security_level=encrypt >> -o smtpd_sasl_auth_enable=yes >> -o smtpd_client_restrictions=permit_sasl_authenticated,reject >> -o milter_macro_daemon_name=ORIGINATING > port 465 is default for smtps...not smtp > smtps inet n - n - - smtpd > -o smtpd_tls_wrappermode=yes > > open it on your iptables too > _______________________________________________ > CentOS mailing list > CentOS@xxxxxxxxxx > http://lists.centos.org/mailman/listinfo/centos > Thanks / Regards Prabhpal S. Mavi _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos