Hello. A few weeks ago and out of the blue i started getting some messages deferred at random times.
Aug 28 18:44:30 mailserver postfix/qmgr[13315]: EDD5B3505B4: from=< [EMAIL PROTECTED]>, size=14529, nrcpt=1 (queue active) Aug 28 19:04:30 mailserver postfix/smtp[27936]: EDD5B3505B4: to=< [EMAIL PROTECTED]>, relay=127.0.0.1[127.0.0.1]:10024, delay=1200, delays=0.13/0.01/0/1200, dsn=4.4.2, status=deferred (conversation with 127.0.0.1[127.0.0.1] timed out while sending end of data -- message may be sent more than once) This also had happened with messages sent in the intranet (sender and recipient on the same mail server). I just can't seem to find the reason for this time outs. Output of postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases always_bcc = [EMAIL PROTECTED] append_dot_mydomain = no biff = no config_directory = /etc/postfix content_filter = amavis:[127.0.0.1]:10024 home_mailbox = Maildir/ inet_interfaces = all mailbox_size_limit = 0 mydestination = ourdomain.com.uy, mailserver, localhost.localdomain, localhost myhostname = mail.ourdomain.com mynetworks = 127.0.0.0/8, 192.168.1.0/24 myorigin = /etc/mailname receive_override_options = no_address_mappings recipient_bcc_maps = hash:/etc/postfix/recipient_bcc recipient_delimiter = + relayhost = sender_bcc_maps = hash:/etc/postfix/sender_bcc smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_invalid_helo_hostname, reject_unlisted_recipient, reject_unlisted_sender, permit smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache smtpd_use_tls = yes Any help is greatly appreciated. Thanks.