Hi all, i wonder how to configure postfix make it use externa smtp server i tried the following relayhost = my.stmp.com smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_auth_enable = yes smtp_sasl_security_options = noanonymous smtp_sasl_tls_security_options = $smtp_sasl_security_options smtp_use_tls = yes in /etc/postfix/sasl_passwd i have my.smtp.com user:password then i postmap /etc/postfix/sasl_passwd restart the postfix, but now i have this problem. Jul 14 12:06:33 garron postfix/smtp[8510]: ECA31F3009D: to=< ggarron at hotmail.com>, relay= my.smtp.com, delay=2, status=deferred (Authentication failed: cannot SASL authenticate to server scz.alketech.com[ 200.87.61.8 3]: no mechanism available) i tried with smtp_sasl_security_options = noanonymous smtp_sasl_security_options = noplaintext, noanonymous smtp_sasl_security_options = but never works, with the second i got the error up. with the other it does not even try to login. i also saw this. when i issue this command as root postmap -q my.stmp.com hash:sasl_passwd i go this error Jul 14 13:12:13 garron postfix/postmap[9123]: fatal: open database sasl_passwd.db: Permission denied i tried even with 777 permissions any clues? regards, Guillermo. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20060714/a8996cf8/attachment-0004.html>