I only can send e-mail using my postfix server. When i send an email to one of my domains on the server, there is an error in the emailclient: Remote-MTA: DNS; server1.mydomain.tld Diagnostic-Code: SMTP; 554 : Relay access denied I checked the Postfix configuration file by comparing it with the version mentioned here: http://www.howtoforge.com/perfect_setup_debian_sarge_p4 Everything seems to be ok in my configuration file, so why this problem? I do not understand! What could be wrong? Hans
Have you set "server needs authentication" in the smtp settings of your email client? If you use ISPConfig, do you have this line in your postfix main.cf file: mydestination = /etc/postfix/local-host-names
Strange behaviour sending/receiving e-mails - Postfix There was a line in /etc/postfix/main.cf : mydestination = server1.mydomain.tld, localhost.mydomain.tld, localhost I changed it in: #mydestination = server1.mydomain.tld, localhost.mydomain.tld, localhost I added your suggested line instead: mydestination = /etc/postfix/local-host-names My Postfix main.cf file looks now like: # See /usr/share/postfix/main.cf.dist for a commented, more complete version smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h myhostname = server1.mydomain.tld alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname #mydestination = server1.mydomain.tld, localhost.mydomain.tld, localhost mydestination = /etc/postfix/local-host-names relayhost = mynetworks = 127.0.0.0/8 mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all smtpd_sasl_local_domain = $myhostname smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination smtpd_tls_auth_only = no smtp_use_tls = yes smtpd_use_tls = yes smtp_tls_note_starttls_offer = yes smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s tls_random_source = dev:/dev/urandom --- After this modification i restarted Postfix with: /etc/init.d/postfix restart When i use my e-mailclient, the mailserver does not recognise my username/password. "server needs authentication" is on (of course). When i send an e-mail from the outside world to an e-mailaddress which belongs to one of the domains on my server, it wil NOT reach the mailbox and it is not bounced back to me! The output of command grep -i smtp /etc/services : smtp 25/tcp mail ssmtp 465/tcp smtps # SMTP over SSL I have also discovered that saslauthd is not always running. When i do an /etc/init.d/saslauthd start it results into: Starting SASL Authentication Daemon: (failed). The output of ps aux|grep saslauthd: root 4225 0.0 0.2 34900 2396 ? Ss 21:05 0:00 /usr/sbin/saslauthd -m /var/spool/postfix/var/run/saslauthd -r -a pam root 4226 0.0 0.2 34900 2392 ? S 21:05 0:00 /usr/sbin/saslauthd -m /var/spool/postfix/var/run/saslauthd -r -a pam root 4227 0.0 0.2 34900 2396 ? S 21:05 0:00 /usr/sbin/saslauthd -m /var/spool/postfix/var/run/saslauthd -r -a pam root 4228 0.0 0.2 34900 2396 ? S 21:05 0:00 /usr/sbin/saslauthd -m /var/spool/postfix/var/run/saslauthd -r -a pam root 4229 0.0 0.2 34900 2396 ? S 21:05 0:00 /usr/sbin/saslauthd -m /var/spool/postfix/var/run/saslauthd -r -a pam root 9059 0.0 0.0 2908 620 pts/1 S+ 22:12 0:00 grep saslauthd I could start saslauthd again after killing the processes according: kill -9 4225 kill -9 4226 kill -9 4227 kill -9 4228 kill -9 4229 /etc/init.d/saslauthd start saslauthd was started, but it did not solve my problem with receiving/sending emails. For me this is a serious problem, how can it be solved? I hope someone can help me. Hans
Please rerun the configuration steps for post´fix and courier as described here: http://www.howtoforge.com/perfect_setup_debian_sarge_p4 Do you have ISPConfig installed?
Postfix reinstallation Yes, Till i have ISPConfig (last stable version) installed. Can i just rerun the setup for Postfix? Or do i have to remove the existing Postfix files first with apt-get remove --purge ..., before is start again? I also have checked my /var/log/mail.log file. When i have send an e-mail to an e-mailaddress on the server it does not reach it. In every line of the logfile: nmsgs=0 ndele=0 Hans
Yes. No, you don't need this. But after Code: apt-get install postfix ... you should run Code: dpkg-reconfigure postfix