Family, Work, Life

Howto Setup Ubuntu postfix to send email with 1und1 as smarthost

Installing Postfix with

apt-get install postfix

or choose dpkg-reconfigure postfix when you allready installed postfix before.

The configuration working for me is “satelite”.

  1. System Mail Name: your maildomain name (interblc.com) not the dns name of your server.
  2. SMTP relay host:smtp.1und1.de
  3. Root and Postmaster mail recipient: your user account or external email address
  4. Other destinations to accept mail for: your servername, localhost.localdomain,localhost
  5. Force synchronous updates on mail queue: If you have ext3 oder reiser NO otherwise better YES
  6. Local Networks: 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
  7. Procmail for local delivery: Yes
  8. Mailbox size limit: 0
  9. Local address extension character: +
  10. Internet Protocol:All

Edit /etc/postfix/main.cf and add these lines at the end:

smtp_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
smtp_sasl_password_maps = hash:/etc/postfix/sasl_password

Create /etc/postfox/sasl_password with one line:

smtp.1und1.de MAILACCOUNT_at_1und1:PASSWD

Create and db file from this passwd file with

postmap /etc/postfix/sasl_password

Restart postfix with:

/etc/init.d/postfix restart
Now it should work. Give it a try with

date | mail -s “testing” regen@wetter.de

and watch the logfile with

tail -f /var/log/mail.log

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This entry was posted on Thursday, July 24th, 2008 at 15:21 and is filed under System. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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13 Responses to “Howto Setup Ubuntu postfix to send email with 1und1 as smarthost”

  1. Alex Says:
    August 16th, 2008 at 08:58

    Your blog is interesting!

    Keep up the good work!

  2. Tri Nguyen Says:
    September 5th, 2008 at 16:05

    Did not work at all. I follow from begining till Edit /etc/postfix/main.cf then my box said no such file exist.

    It looks simple but too hard to make it works.

    I am only 3days ubuntu experience!
    What I need to do is to setup the Mail server to receive mail and send mail from my web site ASP.NET

    Any recomemdation please?!

    Thank a bunch

  3. Ansi Says:
    September 5th, 2008 at 17:18

    Moin Tri
    dpkg-reconfigure worked?
    The directory /etc/postfix/ exists?
    When it exists please post the output of “ls -al /etc/postfix/”.
    Greetings
    Ansi

  4. Tri Nguyen Says:
    September 5th, 2008 at 21:03

    I don’t understand what you mean
    I am typing dpkg-recondifure at root@YamUbuntu:~# and it asked me to specify the package to reconfigure

    I’ve been searching all over the world to find the step by step since yesterday but just get a broken piece of tutorial! what the hell! Can any one tell me the direction please.

    Thanks in advance

  5. Ansi Says:
    September 8th, 2008 at 11:39

    So I understand the reconfigure seems to work. What about the directory? /etc/postfix exists?

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