Hello.

I use to use an email address my_user_name@free.fr since the creation of my account from my first provider 20 years ago.
I used to connect by DIALUP.
15 years ago I by a new account from a new provider using dsl. But I continue to keep my first email account.
Today I have a new "dsl" and "tv" account from another provider.
And I continue to use my first email account.

I don't own any domain name, and have no fix IP. (In the future I planned to get one using OpenDNS free service).

To day I try to install a mail server as relayhost.
I have set :
Code:
#relayhost = [smtp.free.fr]
# or relay SMTP on port of submission in SASL
relayhost = [smtp.free.fr]: 587
While trying to verify my POSTFIX configuration by sending a mail to my_user_name@free.fr account

Code:
mail -s "subject : Message Test to myself" my_user_name@free.fr <<< "This is a test message sent to myself"
I got the following error message:

Code:
postfix/smtp[4892]:, MSG  6955F2408FD: to=<my_user_name@free.fr>, relay=smtp.free.fr[212.27.48.4]:587, delay=0.23, delays=0.09/0.03/0.11/0, dsn=4.7.4, status=deferred (TLS is required, but was not offered by host smtp.free.fr[212.27.48.4])
The only help from my provider is :
Code:
Your login "my_user_name" is already authorized to make SMTP authenticated on "smtp.free.fr".
Only encrypted password authentication methods are accepted. For example the use of SSL (on port 465) or of the ' MD5 Challenge-Response' (on port 587).
Here modified parameters in main.cf
Code:
#
disable_vrfy_command = yes
alias_maps = hash:/etc/postfix/aliases
alias_database = hash:/etc/postfix/aliases
#
smtpd_delay_reject = yes
#
smtpd_banner = $myhostname ESMTP
#
transport_maps = hash:/etc/postfix/transport
#
# Great New feature Address Mapping
#  for example may mchirico@localhost to mchirico@gmail.com
smtp_generic_maps = hash:/etc/postfix/generic

mydomain = my-dom.nwk
myorigin = $mydomain
myhostname = LINUX-TEST-123.$mydomain
mydestination = localhost.localdomain
mynetworks = 127.0.0.0/8
mynetworks_style = subnet

#relayhost = [smtp.free.fr]
# ou  RELAIS SMPT sur port de soumission en SASL
relayhost = [smtp.free.fr]:587
#relayhost = [smtp.free.fr]:465

#smtpd_recipient_restrictions = reject_non_fqdn_recipient, permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination, reject_unlisted_recipient, reject_invalid_hostname, reject_non_fqdn_sender, permit

smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, check_relay_domains
Here postconf -n
Code:
alias_database = hash:/etc/postfix/aliases
alias_maps = hash:/etc/postfix/aliases
biff = no
canonical_maps =
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter =
daemon_directory = /usr/lib/postfix
data_directory = /var/lib/postfix
debug_peer_level = 2
debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd $daemon_directory/$process_name $process_id & sleep 5
defer_transports =
delay_warning_time = 0h
disable_dns_lookups = yes
disable_mime_output_conversion = no
disable_vrfy_command = yes
html_directory = /usr/share/doc/packages/postfix-doc/html
inet_interfaces = all
inet_protocols = ipv4
mail_owner = postfix
mail_spool_directory = /var/mail
mailbox_command =
mailbox_size_limit = 0
mailbox_transport =
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
masquerade_classes = envelope_sender, header_sender, header_recipient
masquerade_domains =
masquerade_exceptions =
message_size_limit = 0
message_strip_characters =
mydestination = localhost.localdomain
mydomain = my-dom.nwk
myhostname = LINUX-TEST-123.$mydomain
mynetworks = 127.0.0.0/8
mynetworks_style = subnet
myorigin = $mydomain
newaliases_path = /usr/bin/newaliases
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/packages/postfix-doc/README_FILES
relay_clientcerts =
relayhost = [smtp.free.fr]:587
relocated_maps =
sample_directory = /usr/share/doc/packages/postfix-doc/samples
sender_canonical_maps =
sendmail_path = /usr/sbin/sendmail
setgid_group = maildrop
smtp_enforce_tls = no
smtp_generic_maps = hash:/etc/postfix/generic
smtp_sasl_auth_enable = yes
smtp_sasl_mechanism_filter = digest-md5
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options =
smtp_sasl_tls_security_options = noanonymous
smtp_tls_CAfile = /etc/postfix/cacert.pem
smtp_tls_CApath =
smtp_tls_cert_file = /etc/postfix/POSTFIX-cert.pem
smtp_tls_key_file = /etc/postfix/POSTFIX-key.pem
smtp_tls_loglevel = 3
smtp_tls_per_site = hash:/etc/postfix/tls_per_site
smtp_tls_session_cache_database = btree:/var/lib/postfix/smtp_tls_session_cache
smtp_use_tls = no
smtpd_banner = $myhostname ESMTP
smtpd_client_restrictions =
smtpd_delay_reject = yes
smtpd_helo_required = yes
smtpd_helo_restrictions =
smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, check_relay_domains
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = $myhostname
smtpd_sasl_path = smtpd
smtpd_sender_restrictions =
smtpd_tls_CAfile = /etc/postfix/cacert.pem
smtpd_tls_CApath =
smtpd_tls_ask_ccert = no
smtpd_tls_cert_file = /etc/postfix/POSTFIX-cert.pem
smtpd_tls_key_file = /etc/postfix/POSTFIX-key.pem
smtpd_tls_loglevel = 3
smtpd_tls_received_header = yes
smtpd_tls_session_cache_database = btree:/var/lib/postfix/smtpd_tls_session_cache
smtpd_use_tls = yes
strict_8bitmime = no
strict_rfc821_envelopes = no
transport_maps = hash:/etc/postfix/transport
unknown_local_recipient_reject_code = 550
virtual_alias_domains =
Any help is welcome