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Old 5th September 2012, 02:15
gscales gscales is offline
Join Date: May 2012
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Default Cannot Get Postfix to Send from Remote: Perfect Server 10.04 Postfix/Courier/Squirrel


I have been working on this for days. I built a server using the guide in Perfect Server Ubuntu 10.04, specifically using Postfix/Courier/SquirrelMail.

The SquirrelMail part of it sends and receives perfectly. I can receive using a MUA such as Outlook or Thunderbird, using both IMAP and POP3. However, I cannot get it to send at all. It simply times out.

Then entry in /var/log/mail.log that seems to match the connection attempt is:

Sep 4 15:15:02 teva postfix/smtpd[10030]: connect from localhost.localdomain[]
Sep 4 15:15:02 teva postfix/smtpd[10030]: lost connection after CONNECT from localhost.localdomain[]
Sep 4 15:15:02 teva postfix/smtpd[10030]: disconnect from localhost.localdomain[]

I can connect from a remote host via "telnet 25" and even send an email like that. Thinking about it, that's no different than the way SquirrelMail does it other than showing that port 25 is open.

Thinking that it was a problem with "smtpd_recipient_restrictions", I commented out the ISPConfig3 line and deleted the "check_recipient_access" that ISPConfig3 uses to whitelist, but it made no difference at all.

It seems like it may be an authorization problem, but I'm at a loss. Here is my

# See /usr/share/postfix/ for a commented, more complete version

# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no

# appending .domain is the MUA's job.
append_dot_mydomain = no

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h

readme_directory = /usr/share/doc/postfix

# TLS parameters
smtpd_tls_cert_file = /etc/postfix/smtpd.cert
smtpd_tls_key_file = /etc/postfix/smtpd.key
smtpd_use_tls = yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

# --Greg Added
smtpd_tls_loglevel = 0
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom

# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.

myhostname =
alias_maps = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases
alias_database = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases
myorigin =
mydestination = localhost, localhost.localdomain
relayhost =
mynetworks = [::1]/128 [xx.xx.43.158]
mailbox_size_limit = 0
recipient_delimiter = +
#inet_interfaces =
inet_interfaces = all
html_directory = /usr/share/doc/postfix/html
virtual_alias_domains =
virtual_alias_maps = proxy:mysql:/etc/postfix/, proxy:mysql:/etc/postfix/, hash:/var/lib/mailman/data/virtual-mailman
virtual_mailbox_domains = proxy:mysql:/etc/postfix/
virtual_mailbox_maps = proxy:mysql:/etc/postfix/
virtual_mailbox_base = /var/vmail
virtual_uid_maps = static:5000
virtual_gid_maps = static:5000
smtpd_sasl_auth_enable = yes
broken_sasl_auth_clients = yes
smtpd_sasl_authenticated_header = yes
# smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, check_recipient_access mysql:/etc/postfix/, reject_unauth_destination
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
smtpd_tls_security_level = may
transport_maps = proxy:mysql:/etc/postfix/
relay_domains = mysql:/etc/postfix/
relay_recipient_maps = mysql:/etc/postfix/
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 $virtual_mailbox_limit_maps
smtpd_sender_restrictions = check_sender_access mysql:/etc/postfix/
smtpd_client_restrictions = check_client_access mysql:/etc/postfix/
smtpd_client_message_rate_limit = 100
maildrop_destination_concurrency_limit = 1
maildrop_destination_recipient_limit = 1
virtual_transport = maildrop
header_checks = regexp:/etc/postfix/header_checks
mime_header_checks = regexp:/etc/postfix/mime_header_checks
nested_header_checks = regexp:/etc/postfix/nested_header_checks
body_checks = regexp:/etc/postfix/body_checks
owner_request_special = no
content_filter = amavis:[]:10024
receive_override_options = no_address_mappings
message_size_limit = 0

Thanks in advance for your help ... I'm going crazy here!

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