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Old 10-24-2003, 05:23 AM   #1
adengua
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Registered: Oct 2003
Posts: 32

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Question Good Question for Postfix Experts


Help needed
Dear linux users , i have just migrated to linux i dont have much knowledge about linux . I need help on postfix-2.0.16-3 configuration.

Notes
1. I have a registered domain name. ( mydomain1.com )

2. I have 2 PCs on my LAN both of them having their IP 's NAT differently

Lets say PC AA and PC BB

PC AA is hosting my domain ( mydomain1.com ) {O/S windows 2000}
PC BB is hosting postfix ( BB.mydomain1.com ) {O/S redhat Linux 9.0}

3. PC AA has no A and MX records configured. only mydomain1.com configured just
for my webpage.

HELP HELP

HOW DO I CONFIGURE POSTFIX TO RECEIVE MAIL FOR mydomain1.com
i.e main.cf , master.cf , bind , MX ,A records etc.....

i have surffed the internet for docs related to this topic but all in vein

I can send mail to internet say user@hotmail.com
but i can't receive when i reply to that mail.

i can also send and receive mail only on LAN



main.cf
/////////////////////////////////////////////////////////////////////////////////////
alias_database = hash:/etc/postfix/aliases
alias_maps = hash:/etc/postfix/aliases
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
default_privs = nobody
inet_interfaces = all
local_destination_concurrency_limit = 2
local_recipient_maps = unixasswd.byname $alias_maps
mail_owner = postfix
mail_spool_directory = /var/spool/mail
mailbox_command = /usr/bin/procmail -a "$EXTENSION"
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mydestination = $myhostname, localhost.$mydomain, $mydomain
mydomain = ekinata.com
myhostname = moses.ekinata.com
mynetworks = 192.168.0.0/24, 195.128.33.0/24, 127.0.0.0/8
mynetworks_style = subnet
myorigin = $mydomain
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
readme_directory = /etc/postfix/README_FILES
relay_domains = $mydestination
relay_recipient_maps = hash:/etc/postfix/relay_recipients
sample_directory = /etc/postfix/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_banner = $myhostname ESMTP $mail_name ($mail_version)
unknown_local_recipient_reject_code = 450
//////////////////////////////////////////////////////////////////////////////////////
 
Old 10-24-2003, 05:37 AM   #2
robartes
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Registered: Oct 2003
Location: Mechelen, BE
Distribution: Mandrake as base, most software hand rolled
Posts: 80

Rep: Reputation: 15
Re: Good Question for Postfix Experts

Quote:
Originally posted by adengua
PC AA is hosting my domain ( mydomain1.com ) {O/S windows 2000}
PC BB is hosting postfix ( BB.mydomain1.com ) {O/S redhat Linux 9.0}

First you need an MX record for your domain pointing to BB.mydomain.com. Mail servers the net wide will then send mail for user@mydomain.com to the Postfix server on BB (the postfix *is* accessible from the internet, is it not?).

Then you simply add mydomain.com to mydestinations in main.cf. Postfix will then consider mail to user@mydomain.com as local and will deliver it to the mailbox for user on BB. If you want it to be delivered elsewhere, you can work through aliases or recipient canonical maps.

You could also run a POP or IMAP server on BB so that users on other machines on the LAN can get their mail from it.

Good luck!
 
Old 10-24-2003, 06:08 AM   #3
adengua
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Registered: Oct 2003
Posts: 32

Original Poster
Rep: Reputation: 15
i have MX records at BB.mydomain1.com

but i dont have a registered domain on BB its only on AA

do i need to add MX records at AA too?

i tried what you said by adding mydomain1.com to mydestinations still not working
 
Old 10-24-2003, 08:13 AM   #4
pansophic
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Registered: Oct 2003
Posts: 4

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Try using 'dig -t mx mydomain.com' from your linux machine.

If it doesn't show in the ANSWER SECTION: BB.mydomain.com as the MX with the smallest number, your mail will never get to you.

Code:
mydomain.com          8640      IN     MX      10 BB.mydomain.com
It sounds to me as if you don't have your DNS records implemented properly.
 
Old 10-24-2003, 09:12 AM   #5
adengua
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Registered: Oct 2003
Posts: 32

Original Poster
Rep: Reputation: 15
Thanks alot for your help

i configured the MX records on PCAA to point to PCBB
and now its working fine

Thanks alot thanks
 
  


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