sendmail : 550 host unknown

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# 8  
Old 11-06-2001
Interesting problem. Agree, your DNS resolver appears be just fine. Can you try this?

/usr/lib/sendmail -v < /etc/services

(or some other file and/or valid email address of your choice)

Please post the output of the sendmail -v verbose command. Thanks.
# 9  
Old 11-06-2001
re: sendmail: 550 host unknown

Hi mrsaint,

From the conversation of your mails it seems that you wish to make your UNIX box a mailing server if I am not wrong.

Before some solutions I would like to know whether you are using some another mailing server (for eg. MS-Exchange, Novell Groupwise, CC:Mail etc.).

Also the configurations seen throughtout the mails I have read seems to be perfect. So what I feel is you are trying to send a mail to the outside world i.e. Internet ID's which routes through some mailing server.

Kindly let me know if you are doing so and also that if you want to make this UNIX box as a server or a client.


# 10  
Old 11-06-2001
yes you're right. The goal of this project is to setup an sloaris box as mailsserver with sendmail. Probably there's easier way with some other tools but that's not the questions and sense of this project.
# 11  
Old 11-06-2001
So all that you need to set up is

1. resolv.conf
2. nsswitch.conf

Please see if this works out


# 12  
Old 11-06-2001
these files was already check. see the previous posts!
# 13  
Old 11-06-2001
I didn't received any informations from this command.

( /usr/lib/sendmail < /etc/services )

What means that?!

# 14  
Old 11-06-2001
sendmail -v

You forgot the switch -v

This puts sendmail in the verbose mode as it sends mails. My read on your problem was that your are having trouble sending mail, not necessarily receiving (now the problem seems to be receiving mail Smilie ). There is a big difference between a problem sending mail and a problem receiving mail.

Which problem are you trying to solve: Sending ? Receiving?

Mailservers receive mail. Any good mail client can send mail; this does not require a server process running.

What's going on? Smilie Are we working on a service/server (receive) or just a simple client/DNS problem??? Thanks! Smilie
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