Following up on my previous posts, I'm still experiencing this issue of
sometimes email being delivered as upper case (which ends up in the file
system as upper case). I appreciate the guidance I've received, but I hate
putting fixes in place without understanding what's broken.
Empirical testing shows SOME email addresses appear to stay upper case when
they deliver, and others do not.
Example:
telnet mail.example.com 25
EHLO corwyn.net
MAIL FROM: dove...@corwyn.net
RCPT TO: test...@migration.example.com
DATA
SUBJECT: TEST CAPS
.
delivers mail to /var/spool/mail/migration.EXAMPLE.COM (which would be bad,
as part of it is upper case).
Yet the EXACT same sequence using tes...@migration.example.com,
test2...@migration.example.com, test...@migration.example.com all deliver
to /var/spool/mail/migration.example.com. Only
test...@migration.example.com causes mail to be delivered without being
lower-cased. (WTF?!?)
test...@migration.example.com works fine.
To make it extra special, my internet development / preproduction domain
works just fine to
test...@int.example.com, and as best I can tell the config files except for
the domain itself) match.
It's just bizarre. Anyone have any suggestions on where to look for what
could be making the behaviour different for that email address?
Rick
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
bounce_queue_lifetime = 2d
bounce_size_limit = 50000
bounce_template_file = /etc/postfix/bounce.cf
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = amavisd-new:[127.0.0.1]:10024
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
default_rbl_reply = $rbl_code Service unavailable; $rbl_class [$rbl_what]
blocked using $rbl_domain${rbl_reason?; $rbl_reason}
delay_warning_time = 2h
disable_vrfy_command = yes
header_checks = pcre:/etc/postfix/header_checks
home_mailbox = Maildir/
html_directory = /var/www/html/postfix
mail_owner = postfix
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
maximal_queue_lifetime = 2d
message_size_limit = 30720000
mime_header_checks = pcre:/etc/postfix/mime_header_checks
mydestination = localhost $myhostname
mydomain = example.com
myhostname = mail.example.com
myorigin = example.com
newaliases_path = /usr/bin/newaliases
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES
receive_override_options = no_address_mappings
recipient_delimiter = +
sendmail_path = /usr/sbin/sendmail
setgid_group = postdrop
show_user_unknown_table_name = no
smtp_tls_CAfile = /etc/pki/tls/certs/ca-bundle.crt
smtp_tls_loglevel = 2
smtp_use_tls = yes
smtpd_client_connection_rate_limit = 30
smtpd_client_restrictions =
smtpd_data_restrictions = reject_multi_recipient_bounce
smtpd_helo_required = yes
smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/access
reject_unknown_sender_domain reject_non_fqdn_recipient
reject_non_fqdn_sender permit_mynetworks permit_sasl_authenticated
check_client_access hash:/etc/postfix/agencies reject_unauth_destination
check_helo_access pcre:/etc/postfix/helo_checks reject_rbl_client
zen.spamhaus.org reject_rbl_client bl.spamcop.net
reject_rbl_client dnsbl.sorbs.net reject_rbl_client cbl.abuseat.org
smtpd_sasl_auth_enable = yes
smtpd_sasl_path = /var/spool/postfix/private/auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_sender_restrictions =
smtpd_tls_cert_file = /etc/httpd/certs/mail_example_com.crt
smtpd_tls_key_file = /etc/httpd/certs/mail.example.com.key.no.password
smtpd_tls_loglevel = 1
smtpd_tls_security_level = may
tls_random_source = dev:/dev/urandom
transport_maps = hash:/etc/postfix/transport
unknown_local_recipient_reject_code = 550
virtual_alias_domains =
virtual_alias_maps = proxy:mysql:/etc/postfix/sql/
mysql_virtual_alias_maps.cf
virtual_gid_maps = static:105
virtual_mailbox_base = /var/spool/mail
virtual_mailbox_domains = proxy:mysql:/etc/postfix/sql/
mysql_virtual_domains_maps.cf
virtual_mailbox_maps = proxy:mysql:/etc/postfix/sql/
mysql_virtual_mailbox_maps.cf
virtual_transport = dovecot
virtual_uid_maps = static:1015
Mail is running postfix and dovecot with mysql, amavisd and spamassassin.
