Dear all,

I am trying to setup a linux server, with debian, and want to make use of the mail() function in php. Therefore I have done the following:
- install sendmail
- change php.ini and set sendmail_path

But I am not able to send any mails. When I look in my error logs, it says (after making a php script that implements mail()):
/var/log/mail.log
DSN: User unknown
DSN: Service unavailable

I am not very into networking, so I don't know where to start looking, or what is wrong. Can somebody help me?

Best regards, Geert

Does basic mailing from the command line work?
For example:
If that doesn't work, you may want to verify your sendmail config.

sorry for offtopic
the above comand should send an email to the specified address ?
i change it in a real email address and i didn't received anything

Yes, it should. Depends on how your system is set up. I use it in quite a few scripts and such on all my servers to send alerts.

On desktops this isn't typically configured, but neither is sendmail.

Here's a config guide:
http://man-wiki.net/index.php/1:mailx

thanks

Unfortunate basic mailing doesn't work. Telnet does work however, when I specify my smtp server. So what config options do I need to change? I use sendmail.

Where were the steps in the sendmail config doc where you had problems?

I couldn't find where to say through which smtp server to send my mail.

You mean to forward it within your domain, or outside?

If you're doing outbound MTA only (don't deliver mail from 'the internet' to your network, just collect mail locally and send it to another host) try this:
http://www.cyberciti.biz/faq/linux-c...ubmission-mta/

Otherwise, try this:
http://www.wikihow.com/Configure-Sendmail

That one is pretty straightforward. Basically the sendmail.cf holds most of the settings for sendmail.

Try a simpler test to see if very basic sendmail is working

OK, we are coming somewhere. When I dot his, I get the following error (sultan.arnhem.chello.nl is no 'real' domain off course):

mail -v test@gburg.nl

Can't send mail: sendmail process failed with error code 69

sultan:/home/geert# mail -v test@gburg.nl
Subject: testen 777
dit is een test
.
Cc:
test@gburg.nl... Connecting to mail.upcmail.nl. via relay...
220 edge02.upc.biz edge ESMTP server ready
>>> EHLO sultan.arnhem.chello.nl
250-edge02.upc.biz hello [62.194.232.122], pleased to meet you
250-HELP
250-AUTH LOGIN PLAIN
250-SIZE 15360000
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 OK
>>> MAIL From:<root@sultan.arnhem.chello.nl> SIZE=55 AUTH=root@sultan.arnhem.chello.nl
550 5.1.0 <root@sultan.arnhem.chello.nl> sender rejected
root... Using cached ESMTP connection to mail.upcmail.nl. via relay...
>>> RSET
250 2.0.0 OK
>>> MAIL From:<> SIZE=1079
250 2.1.0 <> sender ok
>>> RCPT To:<root@sultan.arnhem.chello.nl>
550 5.1.1 <sultan.arnhem.chello.nl> invalid domain
>>> DATA
503 5.5.0 need RCPT before DATA
>>> RSET
250 2.0.0 OK
>>> RSET
250 2.0.0 OK
postmaster... Using cached ESMTP connection to mail.upcmail.nl. via relay...
>>> MAIL From:<> SIZE=2103
250 2.1.0 <> sender ok
>>> RCPT To:<postmaster@sultan.arnhem.chello.nl>
550 5.1.1 <sultan.arnhem.chello.nl> invalid domain
>>> DATA
503 5.5.0 need RCPT before DATA
>>> RSET
250 2.0.0 OK
MAILER-DAEMON... Saved message in /var/lib/sendmail/dead.letter
Closing connection to mail.upcmail.nl.
>>> QUIT
221 2.0.0 edge02.upc.biz edge closing connection
Can't send mail: sendmail process failed with error code 69