Hey postix-users,
I am new to this mailing list, and not aware of the correct format to ask the query.
Issue: I have a postfix cluster for outgoing mail. When the mail header or any line exceeds the line_length_limit then the email is broken. As per the doc, postfix breaks the line and reconstructs at the time of delivery, but this is not happening. Also, the breaking of line is done by two /r/n. That's why it breaks the mail in incoming, since /r/n/r/n is considered as the end of headers.
Issue: I have a postfix cluster for outgoing mail. When the mail header or any line exceeds the line_length_limit then the email is broken. As per the doc, postfix breaks the line and reconstructs at the time of delivery, but this is not happening. Also, the breaking of line is done by two /r/n. That's why it breaks the mail in incoming, since /r/n/r/n is considered as the end of headers.
Example mail breaking on subject header:
Date: Tue, 3 Dec 2024 12:45:49 +0000 (GMT)
Feedback-ID: :bra...@eu.riva.co:eu.riva.co:flockmailId
From: "bra...@eu.riva.co" <bra...@eu.riva.co>
To: "braham@titan.email" <braham@titan.email>
Message-ID: <162941512924037120.0.v2@titan.email>
Subject: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbb
MIME-Version: 1.0
Content-Type: multipart/related;
boundary="----=_Part_39490_107223945.1733229949352"
Below is the postfix config:
[root@prod-euc1-smtp-out1002 braham.k]# postconf -n
biff = no
bounce_queue_lifetime = 2d
compatibility_level = 2
content_filter = scan:[127.0.0.1]:XX
header_checks = pcre:/etc/postfix/header_checks
mailbox_size_limit = 157286400
maximal_backoff_time = 4000s
maximal_queue_lifetime = 1d
message_size_limit = 52428800
milter_command_timeout = 30s
milter_connect_timeout = 5s
milter_content_timeout = 30s
milter_default_action = accept
milter_header_checks = pcre:/etc/postfix/milter_header_checks, tcp:127.0.0.1:XX
mime_header_checks = regexp:/etc/postfix/mime_header_checks
minimal_backoff_time = 5m
myhostname = XX
mynetworks = 127.0.0.0/8
non_smtpd_milters = $smtpd_milters
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $smtpd_sender_login_maps $sender_bcc_maps $recipient_bcc_maps $smtp_generic_maps $lmtp_generic_maps $alias_maps $smtpd_client_restrictions $smtpd_helo_restrictions $smtpd_sender_restrictions $smtpd_relay_restrictions $smtpd_recipient_restrictions $milter_header_checks $sender_dependent_default_transport_maps
queue_run_delay = 5m
receive_override_options = no_address_mappings
recipient_canonical_classes = envelope_recipient, header_recipient
recipient_canonical_maps = tcp:127.0.0.1:XX
scan_destination_concurrency_failed_cohort_limit = 0
sender_canonical_classes = envelope_sender
sender_canonical_maps = proxy:mysql:/etc/postfix/no-srs.cf, tcp:127.0.0.1:10001
sender_dependent_default_transport_maps = proxy:mysql:/etc/postfix/mysql-transport-map.cf
smtp_destination_concurrency_failed_cohort_limit = 0
smtp_header_checks = regexp:/etc/postfix/smtp_header_checks
smtp_tls_loglevel = 1
smtp_tls_security_level = may
smtpd_banner = $myhostname ESMTP $mail_name
smtpd_client_connection_rate_limit = 1000
smtpd_delay_reject = no
smtpd_junk_command_limit = ${stress?{3}:{5}}
smtpd_milters = XX
smtpd_policy_service_default_action = DUNNO
smtpd_policy_service_timeout = 10s
smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination
smtpd_relay_restrictions = permit_mynetworks,permit_sasl_authenticated
smtpd_sasl_auth_enable = yes
smtpd_sasl_path = /var/spool/postfix/private/auth
smtpd_sasl_type = dovecot
smtpd_sender_login_maps = XX
smtpd_sender_restrictions = reject_non_fqdn_sender,permit_mynetworks,reject_sender_login_mismatch,check_sender_access tcp:127.0.0.1:9981,permit_sasl_authenticated,reject
smtpd_tls_CAfile = XX
smtpd_tls_auth_only = no
smtpd_tls_cert_file = XX
smtpd_tls_key_file = XX
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_use_tls = yes
smtputf8_enable = no
tls_random_source = dev:/dev/urandom
virtual_transport = XX
Thanks & Regards
_______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
