ok, i tried setting up the mta using yast. This did not work quite as well
as i'd liked.
I've now manually edited the main.cf file as you suggested Sandy. I had to
create the file '/etc/postfix/smtp_relayhost_auth' as it was not there,
and entered the server and username/passwd for my isp.
i restarted postfix as you advised. It seems i'm getting mail ok but can't
send now.
output from 'postconf -n' :
alias_maps = hash:/etc/aliases
biff = no
canonical_maps = hash:/etc/postfix/canonical
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/lib/postfix
debug_peer_level = 2
defer_transports = smtp
disable_dns_lookups = yes
disable_mime_output_conversion = no
html_directory = /usr/share/doc/packages/postfix/html
inet_interfaces = localhost
inet_protocols = all
mail_owner = postfix
mail_spool_directory = /var/mail
mailbox_command = /usr/bin/procmail
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 = root
message_size_limit = 10240000
mydestination = $myhostname,localhost.$mydomain,$mydomain
myhostname = unix-queen.home
mynetworks_style = subnet
newaliases_path = /usr/bin/newaliases
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/packages/postfix/README_FILES
relayhost = mail.btinternet.com
relocated_maps = hash:/etc/postfix/relocated
sample_directory = /usr/share/doc/packages/postfix/samples
sender_canonical_maps = hash:/etc/postfix/sender_canonical
sendmail_path = /usr/sbin/sendmail
setgid_group = maildrop
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/smtp_relayhost_auth
smtp_sasl_security_options = noanonymous
smtp_use_tls = no
smtpd_client_restrictions =
smtpd_helo_required = no
smtpd_helo_restrictions =
smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination
smtpd_sasl_auth_enable = no
smtpd_sender_restrictions = hash:/etc/postfix/access
smtpd_use_tls = no
strict_8bitmime = no
strict_rfc821_envelopes = no
transport_maps = hash:/etc/postfix/transport
unknown_local_recipient_reject_code = 550
virtual_alias_domains = hash:/etc/postfix/virtual
virtual_alias_maps = hash:/etc/postfix/virtual
--------------------------------------------
errors from /var/log/mail :
postfix/error[14394]: 304011CD519: to=