Hi all, Hope you can help me with this. I did a fresh install of Centos 5 with postfix-2.3.3-2 from RPMs, Spamassassin, Amavisd-new and Clamav. everything is going very good until I send messages to mail.osterlingfirm.com if the message is tiny, there are no problems anything bigger than 100k will receive the following: Sep 4 16:34:11 mail postfix/smtp[22137]: send attr original_recipient = [EMAIL PROTECTED] Sep 4 16:34:11 mail postfix/smtp[22137]: send attr recipient = [EMAIL PROTECTED] Sep 4 16:34:11 mail postfix/smtp[22137]: send attr dsn_orig_rcpt = rfc822;[EMAIL PROTECTED] <[EMAIL PROTECTED]> Sep 4 16:34:11 mail postfix/smtp[22137]: send attr reason = conversation with mail.osterlingfirm.com[200.31.124.213] timed out while sending message body This is the reason why I tweaked (and probably exagerated) the smtp_data parameters. They have a M$ MTA and as I can read, a Symantec appliance as mailrelay: 220 osterling08.osterlingfirm.com ESMTP Symantec Mail Security
The following is the configuration I am using: [EMAIL PROTECTED] postfix]# postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases bounce_size_limit = 9000 command_directory = /usr/sbin config_directory = /etc/postfix content_filter = smtp-amavis:[127.0.0.1]:10024 daemon_directory = /usr/libexec/postfix debug_peer_level = 5 debug_peer_list = osterlingfirm.com html_directory = no inet_interfaces = all mail_owner = postfix mail_spool_directory = /var/spool/mail mailbox_size_limit = 300000000 mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man message_size_limit = 30240000 mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain, mail.$mydomain, www.$mydomain, ftp.$mydomain mydomain = midominio.com.pe myhostname = mail.midominio.com.pe mynetworks = 127.0.0.0/8, 192.168.100.0/24, 200.62.yyy.xxx/32, 200.62.149.1/32, 190.81.36.162/32, 200.62.www.zzz/32, 200.110.14.94/32, 200.99.93.0/24, 200.99.94.0/24, 200.99.95.0/24, 200.99.65.0/24, 200.99.92.220/32, 200.237.69.219/32, 200.4.245.0/24, 200.22.3.0/24, 200.24.181.0/24, 200.24.183.0/24, 200.37.15.0/24, 200.37.72.0/24, 200.42.3.0/24, 200.44.45.0/24, 200.48.15.0/24, 216.6.88.0/24, 216.6.90.0/24, 216.6.91.0/24, 200.31.96.0/24, 200.31.97.0/24, 200.31.98.0/24, 200.31.99.0/24, 200.62.158.0/24 myorigin = $mydomain newaliases_path = /usr/bin/newaliases.postfix queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES sample_directory = /usr/share/doc/postfix-2.3.3/samples sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtp_data_done_timeout = 2200s smtp_data_init_timeout = 240s smtp_data_xfer_timeout = 960s smtp_destination_recipient_limit = 20 smtpd_banner = $myhostname ESMTP $mail_name smtpd_etrn_restrictions = reject_unknown_client smtpd_recipient_limit = 300 smtpd_sender_restrictions = reject_invalid_hostname, reject_unknown_sender_domain soft_bounce = no strict_rfc821_envelopes = no unknown_local_recipient_reject_code = 550 Thanks in advance for your kind attention and comments! -- Francisco Neira Usuario Linux # 165985 Lima, Peru -05:00 GMT