Hi! I've installed Postfix and Courier as described in this howto. I can send mail via this server from an account, but I can't receive messages (or the server doesn't accept email?). When sending a mail to [email protected] I get this in return (in a mailer deamon mail): Code: PERM_FAILURE: SMTP Error (state 9): 550 <[email protected]>: Recipient address rejected: User unknown in relay recipient table What might be the problem? Have a nice day and thanks in advance. Sebastian
It looks like the user doesn't exist, or Postfix is not configured for that domain. Please make sure of the following: 1) The domain must be listed in the 'mydestination' variable in /etc/postfix/main.cf. This tells postfix that it is to receive mail for 'domain.com' (whatever your actual domain is). 2) The user must exist, or there must be a virtual map to the real user. For example, if the user is 'me' then their should be a system user called 'me' (in /etc/passwd). My default, postfix will send any mail for '[email protected]' to 'me@localhost'. However, if the 'me' user does not exist at the system level, then there needs to be a virtual map alias. This is usually handled by the "virtual_maps" setting in '/etc/postfix/main.cf' such as: Code: virtual_maps = hash:/etc/postfix/virtual This says that '/etc/postfix/virtual' contains a list of virtual alias maps. Within this file, I would have: Code: [email protected] realuser Where 'realuser' is the system user (in /etc/passwd). If you are modifying this file, you will need to re-create the hash/map file: Code: postmap /etc/postfix/virtual And maybe reload the config: Code: postfix reload This should allow you to accept mail for '[email protected]' (assuming that you actually set it up for a proper 'user' at a real 'domain'.
Hi and thanks for your reply! I have created the system user, as well as the folders /home/user/Maildir and the subdirs tmp, new and cur. Now I tried to follow your steps for virtual users. But the problem is still the same. Is there any way for me to check that the mail is possible for Postfix to send to me@localhost? Here is my main.cf: Code: smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no myhostname = domain.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = domain.com, localhost relayhost = mynetworks = 127.0.0.0/8 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all smtpd_sasl_local_domain = 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 home_mailbox = Maildir/ mailbox_command = virtual_maps = hash:/etc/postfix/virtual-users Thanks!
What's in /etc/postfix/virtual-users? What's the output of Code: ls -l /etc/postfix ? You should also add localhost.localdomain to the mydestination line in main.cf.
Hi! This is the output of ls -l /etc/postfix Code: -rw-r--r-- 1 root root 318 Sep 3 13:54 dynamicmaps.cf -rw-r--r-- 1 root root 1520 Sep 3 21:22 main.cf -rw-r--r-- 1 root root 4011 Sep 3 13:54 master.cf -rwxr-xr-x 1 root root 22018 Feb 24 2006 post-install -rw-r--r-- 1 root root 17562 Feb 24 2006 postfix-files -rwxr-xr-x 1 root root 6836 Feb 24 2006 postfix-script -rw------- 1 root root 1024 Sep 4 11:15 prng_exch drwxr-xr-x 2 root root 4096 Sep 3 13:56 sasl drwxr-xr-x 2 root root 4096 Sep 3 14:00 ssl -rwxrwxrwx 1 root root 48 Sep 4 11:15 virtual-users -rw-r--r-- 1 root root 49152 Sep 4 11:15 virtual-users.db virtual-users is chmoded 777 just in case =). I added localhost.mydomain.com where mydomain.com is the output of cat /etc/hostname.
Please also add localhost.localdomain (don't replace localdomain!) and all the other domain that your server should receive mails for to mydestination in /etc/postfix/main.cf. Then restart Postfix.
I am not an expert but I have had experience tweaking the allow relay users in Postfix. From Postfix's page: It then goes on to say: I would suggest adding the following line to your main.cf under the alias_maps paramater: Code: local_recipient_maps = proxy:unix:passwd.byname $alias_maps Let me know how it goes.
