Hi Jeremy,

thanks for your really fast answer!!! I don't understand this: "TurnKey is set up so that it doesn't need a separate/external SMTP server." But if i try "sendmail recipient@example.com < email.txt", i got an error "Undelivered Mail Returned to Sender".

So why?

Thanks

PS: i don't have a real hostname on my turnkey linux.

Hi Jeremy,

yes, i used a really email-adress instead of recipient@example.com. Here is the returned email, with some error messages. I dont know, what is going wrong. (I replaced the really email-adress with xxx@xxx.com).

--469CD8226B.1423200154/localhost--

From MAILER-DAEMON  Fri Feb  6 09:41:35 2015
Return-Path: <>
X-Original-To: root@localhost
Delivered-To: root@localhost
Received: by localhost (Postfix)
 id 738FD8244A; Fri,  6 Feb 2015 09:41:35 +0100 (CET)
Date: Fri,  6 Feb 2015 09:41:35 +0100 (CET)
From: MAILER-DAEMON@localhost (Mail Delivery System)
Subject: Undelivered Mail Returned to Sender
To: root@localhost
Auto-Submitted: auto-replied
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
 boundary="0349982449.1423212095/localhost"
Message-Id: <20150206084135.738FD8244A@localhost>

This is a MIME-encapsulated message.

--0349982449.1423212095/localhost
Content-Description: Notification
Content-Type: text/plain; charset=us-ascii

This is the mail system at host localhost.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<xxx@xxx.com>: host mx00.kundenserver.de[212.227.15.134] refused to
    talk to me: 501 Syntax error in parameters or arguments

--0349982449.1423212095/localhost
Content-Description: Delivery report
Content-Type: message/delivery-status

Reporting-MTA: dns; localhost
X-Postfix-Queue-ID: 0349982449
X-Postfix-Sender: rfc822; root@localhost
Arrival-Date: Fri,  6 Feb 2015 09:41:15 +0100 (CET)

Final-Recipient: rfc822; xxx@xxx.com
Action: failed
Status: 5.0.0
Remote-MTA: dns; mx00.kundenserver.de
Diagnostic-Code: smtp; 501 Syntax error in parameters or arguments

--0349982449.1423212095/localhost
Content-Description: Undelivered Message
Content-Type: message/rfc822

Return-Path: <root@localhost>
Received: by localhost (Postfix, from userid 0)
 id 0349982449; Fri,  6 Feb 2015 09:41:15 +0100 (CET)
Message-Id: <20150206084116.0349982449@localhost>
Date: Fri,  6 Feb 2015 09:41:15 +0100 (CET)
From: root@localhost (root)

test

--0349982449.1423212095/localhost--

Hi RChadwick,

please can you send more details. Which config file do you edit? What hostname i should added. My turnkey dont use a real domainname. How can i config an external Mailserver (like Google Mail) by using postfix.

Thanks!

Thanks for your answer. Yes you are right, the most mail server need an authentification. I will further try to find a solution for the postfix config.

okay, i read some wikis and tried the following things. Important: you have to change "smtp.yourserver.com" with the STMP-address of your real email-server. Also replace "username",  "password" and "email@yourdomain.com" with your correct values.

At first, most of the public mail servers need an authentification. So it is necessary to install the authentification modules:

apt-get install libsasl2-modules

Now generate password file:

touch /etc/postfix/sasl_password

input your authentification parameter like:

smtp.mailserver.com username:password

secure password file by:

chmod 600 /etc/postfix/sasl_password

now generate password database:

postmap hash:/etc/postfix/sasl_password

Also most of the public mail servers need a correct sender. So set correct sender by using canonical file:

touch /etc/postfix/sender_canonical

input your canonicals:

root email@yourdomain.com

generate canonical database:

postmap hash:/etc/postfix/sender_canonical

now edit your /etc/postfix/main.cf and append the following lines:

relayhost = smtp.mailserver.com
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_tls_security_level = may
sender_canonical_maps = hash:/etc/postfix/sender_canonical

now restart postfix by:

/etc/init.d/postfix restart

But!!! Now i can send emails, but nothing arrives and no error messages occur? In which logfile can i expect what happens? Can everybody check my changes?

Thanks

Sorry, but i dont get it working.

But I implement now a little PHP-script by using php-mime-mail-parser to open the root mailbox file and PHPMailer to forwarding the emails. This works fine and i start it from the cron hourly jobs.

Yeah, thanks. I will change it.

In my explanation in http://www.turnkeylinux.org/forum/support/20150206/config-outgoing-email-smtp#comment-22551 there was an error! Follow the steps as describe in the comment, but append these lines to your /etc/postfix/main.cf:

relayhost = smtp.mailserver.com:587
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_password
smtp_sasl_security_options = noanonymous
smtp_tls_security_level = may
sender_canonical_maps = hash:/etc/postfix/sender_canonical

Config the port by :XXX after the servername. And use the correct path to the password map:

/etc/postfix/sasl_password

in stead of:

/etc/postfix/sasl_passwd

Works now fine on my Turnkey LAMP!

in additional to use the PHP mail(), it is to necessary to config the following things:

edit /etc/php5/apache2/php.ini and/or /etc/php5/cli/php.ini and set the sendmail_path:

sendmail_path = /usr/sbin/sendmail -t -i

now add the canonical for the user www-data in /etc/postfix/sender_canonical

www-data email@yourdomain.com

generate canonical database:

postmap hash:/etc/postfix/sender_canonical

now restart postfix by:

/etc/init.d/postfix restart