The Perfect Setup - Debian Woody (3.0)... sending mail from my XP box?

Discussion in 'HOWTO-Related Questions' started by ExCIA, May 7, 2005.

  1. ExCIA

    ExCIA New Member

    BTW... this is one of the best HOWTOs website I've ever come across. Two thumbs up. :)

    Anyway, I have completed the 'The Perfect Setup - Debian Woody' and what do I need to do in order to send mails from my XP machines (outlook) to my Debian server and let the Debian server deliver the mail to my ISP?

    I have three XP machines in the network and the forth one is the Debian server ( All is connected through a router (broadband).

    My ISP's (NTLWorld) smtp/pop3 servers are:

    To send mail I have to use SMTP authentication.

    For example, if my email address is [email protected] does that means I have to create an account on the Debian server as john.doe?
    Last edited: May 7, 2005
  2. falko

    falko Super Moderator ISPConfig Developer

    No, the user name doesn't matter, you could create a user named sampleuser with the password samplepassword.

    Now you have to prepare Postfix for relaying through another server:

    postconf -e 'smtp_sasl_auth_enable = yes'
    postconf -e 'smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd'
    postconf -e 'smtp_sasl_security_options ='
    chown root:root /etc/postfix/sasl_passwd
    chmod 600 /etc/postfix/sasl_passwd
    postmap /etc/postfix/sasl_passwd
    /etc/init.d/postfix restart
    In /etc/postfix/sasl_passwd you put your ISP's SMTP server and a user name and password that are allowed to send through that server:

    Code:   [I]Username on[/I]:[I]Password[/I]
    Whenever you change /etc/postfix/sasl_passwd you have to do the following:
    postmap /etc/postfix/sasl_passwd
    /etc/init.d/postfix restart
    Now if you want to send email from your XP machine you tell your email client to use the user sampleuser with the password samplepassword along with your internal SMTP server (
    And fetching emails doesn't change: you simply fetch them from your ISP's POP3 server (
  3. ExCIA

    ExCIA New Member

    What is the difference between doing what you suggest and simply add an ISP's smtp server address in the 'relayhost =' in the /etc/postfix/ file?

    Good thing you mentioned /etc/postfix/sasl_passwd because mine doesn't exist, which I find that pretty strange?
    Last edited: May 8, 2005
  4. falko

    falko Super Moderator ISPConfig Developer

    Right, I forgot that one... :eek: You have to set the relayhost variable in /etc/postfix/

    postconf -e 'relayhost ='
    And don't forget to restart Postfix afterwards.
  5. 3cwired_com

    3cwired_com New Member

    What if I don't have a password for my isp smtp, what if I just use the address?
  6. till

    till Super Moderator Staff Member ISPConfig Developer

    If you dont have a password, just add the relayhosts line in
  7. fredsuperstar

    fredsuperstar New Member

    Great! I've been looking everywhere for this workaround!

    I did every step, and I added relay = [] to my .conf. However, postfix is still unable to send mail because of a 550 error. Here is my log:

    Oct 5 13:18:08 localhost postfix/smtp[28537]: setting up TLS connection to
    Oct 5 13:18:08 localhost postfix/smtp[28537]: certificate peer name verification failed for CommonName mis-match:
    Oct 5 13:18:08 localhost postfix/smtp[28537]: Verified:, Secure Server Certification Authority
    Oct 5 13:18:08 localhost postfix/smtp[28537]: TLS connection established to TLSv1 with cipher RC4-MD5 (128/128 bits)
    Oct 5 13:18:08 localhost postfix/smtp[28537]: 71CCB13413B: to=<[email protected]>,[], delay=1, status=bounced (host[] said: 550 5.7.3 Requested action aborted; user not authenticated (in reply to MAIL FROM command)

    Seems like the auth don't work..
    Any i-d what I could do next?

    Last edited: Oct 5, 2006
  8. falko

    falko Super Moderator ISPConfig Developer

  9. jwan

    jwan New Member

    selective relayhost


    Is it possible that only selected users/domain can or will be relayed via relayhost?

    Eg. [email protected]
    [email protected]
    [email protected]
    [email protected]
    [email protected]

    then users under domain are relayed via relayhost
    then [email protected] also get relayed...but user3 and user5 should not be relayed but get send direct to reciepients MX

    Jojo W.
  10. falko

    falko Super Moderator ISPConfig Developer

  11. jwan

    jwan New Member



    any "actual" example would be useful. I'm a newbie on this and only follows example line by line.

  12. falko

    falko Super Moderator ISPConfig Developer

    What's your Postfix version? Please run
    postconf -d | grep mail_version
  13. jwan

    jwan New Member

    mail_version = 2.2.10

    hope that helps.

    Jojo W.
  14. falko

    falko Super Moderator ISPConfig Developer

    Then you can't use that parameter as it's for Postfix 2.3 or newer.
  15. jwan

    jwan New Member

    Darn! missed your previous note. I got this Postfix by following the perfect setup for ubuntu 6.06. Went to postfix website, downloaded 2.3.x but dont know how to upgrade..arrg! :confused:
  16. falko

    falko Super Moderator ISPConfig Developer

    It's a bad idea to compile Postfix from the sources when you already have your distribution's package installed. I wouldn't do it.
  17. BratmaxeSL82

    BratmaxeSL82 New Member

    how does it work!????

    It would be cool if you can give me an example

    I got Postfix version 2.3.2 running!
  18. falko

    falko Super Moderator ISPConfig Developer

    What? Installing the package or compiling from source?

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