On Mon, Jul 20, 2009 at 1:25 PM, Noel Jones<njo...@megan.vbhcs.org> wrote:
> Details of a problem are not divulged to outsiders, so the transcript
> intentionally gives vague information.
>
> Something broken in your config.  Check your logs, postfix probably tells
> you where to look further there.

That makes sense why it's so vague. I checked my "/var/log/maillog" and
can't find any notification for the error.

> you should add permit_sasl_authenticated just after permit_mynetworks in
the
> above restrictions.

> You should add permit_sasl_authenticated just after permit_mynetworks in
the
> above restrictions.

I added "permit_sasl_authenticated" to all 3 checks in my main.cf file right
after "permit_mynetworks".

- smtpd_helo_restrictions =
- smtpd_recipient_restrictions =
- smtpd_sender_restrictions =

>> smtpd_tls_CAfile = /etc/ssl/intermediate.crt
>> smtpd_tls_auth_only = yes
>> smtpd_tls_cert_file =
>> smtpd_tls_key_file =
>
> Not sure how postfix is supposed to do TLS without a certificate or key
> file.  This looks like the problem.

I omitted this from my postconf -n output but I do have a valid path to the
certificates.
>
>> smtpd_tls_loglevel = 1
>> smtpd_tls_security_level = may
>> smtpd_tls_session_cache_database =
>> btree:/var/spool/postfix/smtpd_tls_cache
>> smtpd_tls_session_cache_timeout = 3600s
>> tls_random_source = dev:/dev/urandom
>> unknown_local_recipient_reject_code = 550
>
>
> You can test TLS with
>
> # openssl s_client -connect ip.add.re.ss:port -starttls smtp
>
> after some TLS handshake garbage, you should get a
> 250 ...
> greeting from postfix.  If it gets that far, TLS is working correctly.

I tested TLS as you noted above and here was my results: (not good)

[r...@mail ~]# openssl s_client -connect 127.0.0.1:25 -starttls smtp
CONNECTED(00000003)
22646:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown
protocol:s23_clnt.c:583:

I removed all SASL / TLS configuration from main.cf and started from scratch
again using the CentOS guide:

http://wiki.centos.org/HowTos/postfix_sasl

I appear to have SASL working fine since I test it as noted in the link
above and I get what I expect to see. It's when I configure TLS on Postfix,
I get the problems:

I am re-posting my latest postconf -n output:

postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = amavisfeed:[127.0.0.1]:10024
daemon_directory = /usr/libexec/postfix
home_mailbox = Maildir/
html_directory = no
inet_interfaces = all
mail_owner = postfix
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mydestination = $myhostname, $mydomain, mail.$mydomain
mydomain = iamghost.com
myhostname = mail.iamghost.com
mynetworks = $config_directory/mynetworks
myorigin = $mydomain
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES
relay_domains =
sample_directory = /usr/share/doc/postfix-2.3.3/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_banner = $myhostname ESMTP
smtpd_delay_reject = yes
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks,    permit_sasl_authenticated,
 reject_non_fqdn_helo_hostname,    reject_invalid_helo_hostname,    permit
smtpd_recipient_restrictions = permit_mynetworks,
permit_sasl_authenticated,   reject_unauth_pipelining,
reject_non_fqdn_recipient,   reject_unknown_recipient_domain,
reject_unauth_destination,   reject_unlisted_recipient,
check_policy_service unix:postgrey/socket,   check_sender_access
hash:/etc/postfix/sender_access,   reject_rbl_client zen.spamhaus.org,
reject_rbl_client bl.spamcop.net,   permit
smtpd_sasl_auth_enable = yes
smtpd_sasl_path = private/auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_sender_restrictions = permit_mynetworks,    permit_sasl_authenticated,
   reject_non_fqdn_sender,    reject_unknown_sender_domain,
 reject_unknown_reverse_client_hostname,    permit
smtpd_tls_auth_only = yes
smtpd_tls_cert_file = /etc/ssl/mail.iamghost.com.crt
smtpd_tls_key_file = /etc/ssl/mail.iamghost.com.key
smtpd_tls_loglevel = 1
smtpd_tls_security_level = may
smtpd_tls_session_cache_database = btree:/var/spool/postfix/smtpd_tls_cache
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom
unknown_local_recipient_reject_code = 550

So my Postfix server is still allowing me to send mail when I have my mail
client use no "secure authentication" setting in Thunderbird when sending
(SMTP) mail. I would think that the "smtpd_tls_auth_only = yes" setting
would not allow me to send mail if I have no authentication configured
unless I am just confused.

Any thoughts? I am lost...

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