Hi, I am trying to setup Postfix on Ubuntu to run as a smarthost for my Exchange 2010 server and a couple of other Exchange 2003 servers.
I followed the guide and can send mail from the server but I cannot get the Exchange to relay the mail Gets stuck in the queue. I get the following error:
"421 4.4.2. Connection dropped due to TimedOut. Attempted failover to alternative host, but that did not succeed"
What should I use as a username and password for the Basic Authentification? Would it be
user@mydomain.com or just user?
Here is my config file
Code:
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname
smtpd_banner = 80-93-162-207.rdns.mkdc.co.uk
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# TLS parameters
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination = mars, localhost.localdomain, , localhost, sendmail.avecsysonline.com
mailbox_size_limit = 0
recipient_delimiter = @
myorigin = /etc/mailname
inet_protocols = all
smtpd_recipient_restrictions = permit_mynetworks permit_inet_interfaces permit_sasl_authenticated
smtpd_tls_security_level = none
mydomain = sendmail.avecsysonline.com
mynetworks = 127.0.0.0/8 80.93.162.192/26 [::1]/128 [fe80::%eth0]/64
smtpd_delay_reject = no
Thank you