Hello, i am using Debian 7.3 with postfix, and am trying to send email through our Exchange 2007 server. I have read tons of posts but i have been unable to get it to work
I am using the postfix package that comes with Debian, and also installed libsasl2-modules On mail.cf i tried the following: relayhost= exchangeserver.ourdomain.com smtp_sasl_security_options= smtp_sasl_auth_enable=yes smtp_sasl_password_maps=hash:/etc/postfix/sasl/sasl_passwd I get 5.3.5 5.7.3 Authentication unsuccessful , so i also tried using telnet to port 25 i am using command AUTH NTLM , which returns 334, but so far i have tried unsuccessfully to enter the login as follows: myu...@mydomain.com domain\myuser exchangeserver\myuser Using wireshark i did see my outlook client on my windows box tried to login to exchange with: AUTH3: call_id: 2, Fragment: Single, NTLMSSP_AUTH, User: exchangeserver\myuser on auth.log i get (2 times): NTLM client step 1 NTLM client step 2 server flags: ff810205 server domain: DOMAIN calculating NT response on /etc/postfix/sasl/sasl_passwd i have: exchangeserver.ourdomain.com myu...@ourdomain.com:password I did run postmap hash:/etc/postfix/sasl/sasl_passwd and /etc/postfix/main.cf as well I do have a workaround if i cannot get this to work, which is to user a virtual smtp server that is on our windows webserver, which doesn't ask for authentication and i have already tested it and it works. But i would like to learn how to do this properly. Thanks in advance -- View this message in context: http://postfix.1071664.n5.nabble.com/Exchange-2007-gives-535-5-7-3-Authentication-unsuccessful-tp65072.html Sent from the Postfix Users mailing list archive at Nabble.com.