warning: network_biopair_interop: error reading 5 bytes from the network: Connection reset by peer
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From: Thanachit Vichianchay on 6 May 2010 05:13 Hi, all My Postfix is configured as an email gateway for a domain. and enable SMTP Authentication, TLS encryption to enhance the security of email traffic. but I get many of these warnings in my postfix log. May 6 12:55:42 mailscan1 postfix/smtpd[19482]: [ID 947731 mail.warning] warning: network_biopair_interop: error reading 5 bytes from the network: Connection reset by peer I try to read the document about postfix TLS but I'm still confuse. and I want to know *1. What is the cause of these warnings?, Is it a kind of an error? 2. What is effect of this warning? , eg, the email is dropped while establish the SMTP connection. 3. How could fix this warning? or some docs or papers to looking for.?* and here, the output from postconf -n. alias_database = dbm:/etc/postfix/chaokhunaliases alias_maps = dbm:/etc/postfix/chaokhunaliases command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix data_directory = /var/lib/postfix debug_peer_level = 2 html_directory = no inet_interfaces = all mail_owner = postfix mailq_path = /usr/bin/mailq manpage_directory = /usr/share/man mydestination = mailscan.kmitl.ac.th, kmitl.ac.th, localhost mydomain = kmitl.ac.th myhostname = mailscan.kmitl.ac.th mynetworks = cidr:/etc/postfix/network_table myorigin = $mydomain newaliases_path = /usr/bin/newaliases queue_directory = /var/spool/postfix readme_directory = no recipient_delimiter = + relayhost = [161.246.254.133] sample_directory = /etc/postfix sendmail_path = /usr/lib/sendmail setgid_group = postdrop smtp_tls_note_starttls_offer = yes smtp_use_tls = yes smtpd_banner = $myhostname ESMTP smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_tls_cert_file = /etc/postfix/certs/mailscan.crt smtpd_tls_key_file = /etc/postfix/certs/mailscan.key smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s smtpd_use_tls = yes swap_bangpath = yes tls_random_source = dev:/dev/urandom transport_maps = $default_database_type:$config_directory/transportList unknown_local_recipient_reject_code = 450 Thanks, Thanachit. Vic -- ¸¹ªÔµ ÇÔàªÕÂéÒ Thanachit Vichianchay Junior, Faculty of Information Technology King Mongkut's Institute of Technology Ladkrabang
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