Postfix: not relaying mails anywhere but own network

polemon · 04-15-2008, 07:23 PM

Hi!

I've set up postfix, to manage mails.

I can receive mails from everywhere. Now I'd like to use this server as server from which I can send my Mails to anywhere.

I plan to instate authentication once this works, so it can't be abused as SPAM realy.

This is my config so far:

Code:

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

#myhostname = v32210.1blu.de
myhostname = polemon.org
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = polemon.org, v32210.1blu.de, localhost.1blu.de, localhost
relayhost = 
mynetworks = 127.0.0.1/8
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
home_mailbox = Maildir/
relay_transport = relay
relay_domains = 0.0.0.0/32

smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)

I've set 'relay_transport' to 'relay' and 'relay_domains' to '0.0.0.0', but the server still refuses to relay my mails anywhere, when I try to send one from my PC, which due to his dynamic IP, is an "untrusted" computer.

Could someone please tell me how to make Postfix relay my mail everywhere?

Regards,
--polemon

billymayday · 04-15-2008, 07:45 PM

Can you please post the output of

postconf -n

and also, try sending an email and pot the relevant part of your log (in FC% I think it's /var/log/maillog)

Don't post the whole thing though...

polemon · 04-16-2008, 08:51 AM

This is what postconf -n says:

Code:

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
home_mailbox = Maildir/
inet_interfaces = all
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
mydestination = polemon.org, v32210.1blu.de, localhost.1blu.de, localhost
myhostname = polemon.org
mynetworks = 127.0.0.1/8
myorigin = /etc/mailname
recipient_delimiter = +
relay_domains = 0.0.0.0/32
relay_transport = relay
relayhost = 
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)

this is in mail.log:

Code:

Apr 16 15:46:02 v32210 postfix/smtpd[31993]: connect from e179234032.adsl.alicedsl.de[85.179.234.32]
Apr 16 15:46:35 v32210 postfix/smtpd[31993]: NOQUEUE: reject: RCPT from e179234032.adsl.alicedsl.de[85.179.234.32]: 554 <admin@justbase.fm>: Relay access denied; from=<bereziak@polemon.org> to=<admin@justbase.fm> proto=SMTP helo=<polemon.org>
Apr 16 15:47:50 v32210 postfix/smtpd[31993]: disconnect from e179234032.adsl.alicedsl.de[85.179.234.32]

billymayday · 04-16-2008, 11:40 PM

85.179.234.32 isn't on you network (as in mynetworks) so of course it won't relay.

If this is from outside of your network (which I assume it is), you should require the user to authenticate (look at sasl authentication - howtos on www.postfix.or.

http://www.postfix.org/docs.html

I internal, fix your mynetworks setting.

Do a quick check from the server to ensure you can send mails to external recipients (just use the mail command like "mail -s something me@hotmail.com)

Edit - take a bit of care here - don't create an open relay