I have a working configuration of Postfix running on my server. It handles purely virtual users, no local UNIX user delivery. However, there are two things that bug me: 1. I'm not able to set myhostname or mydomain to my actual domain. Instead, I have to set it up a subdomain which has an A record pointing to my IP. If I try to set either to my real domain, Postfix refuses all outside connections. Here's my postconf -n Code: alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases broken_sasl_auth_clients = yes command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix inet_interfaces = $myhostname, localhost mail_owner = postfix mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man mydestination = mydomain = asubdomain.mydomain.com myhostname = asubdomain.mydomain.com mynetworks = 127.0.0.1 newaliases_path = /usr/bin/newaliases.postfix queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.2.10/README_FILES relay_domains = $mydestination sample_directory = /usr/share/doc/postfix-2.2.10/samples sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtp_tls_note_starttls_offer = yes smtp_use_tls = no smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_local_domain = smtpd_sasl_security_options = noanonymous smtpd_tls_auth_only = no smtpd_tls_cert_file = ... smtpd_tls_key_file = ... smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s smtpd_use_tls = yes soft_bounce = yes tls_random_source = dev:/dev/urandom transport_maps = mysql:/etc/postfix/mysql_transport_maps.cf unknown_local_recipient_reject_code = 550 virtual_mailbox_domains = mysql:/etc/postfix/mysql_mailbox_domains.cf Now, my server hostname is mydomain.com, so I'm guessing that Postfix is thinking it's only going to be used for local delivery, and therefore blocks all outside connections. 2. Does Postfix remove the carriage return from mail messages? I believe the RFC spec requires that all MIME e-mail messages use CRLF (\r\n), but it seems that all the mail that Postfix (or actually, maildrop) delivers only has \n. Thanks for any help! Johann
Do you use that domain for your virtual users? That happens because it's a Linux system, and on Linux a linebreak is \n.
Thanks for your reply. Yes. I wanted to recieve mail for this domain, but I didn't want to have to set up system accounts for each address, so that's why I made it virtual. Right, I understand that. My question is, isn't that a violation of the RFC standard? Or does the standard simply require that mail being transmitted has to use CRLF's, but mail being stored can simply strip off those carriage returns if wanted? The only reason it's a problem is because I'm trying to use a third party library for parsing mail messages, but it's expecting CRLFs, when all I have are LF's. I'm wondering if there's a setting in Postfix to change this.
I think you should use a different domain for myhostname/mydomain. I don't know of such a Postfix setting.
