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Can't configure sendmail to send mails to external SMTP Server

 
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# 1  
Old 12-15-2010
Data Can't configure sendmail to send mails to external SMTP Server
Hi all,I know, that this is very common issue, but I can't find where is the problem... I have Solaris 10 installed.I want to send mail to external SMTP server, like:echo "letter body"| mailx -s "subject" test@test.comBut I donno what kind of changes I have to do in /etc/hosts and sendmail.cf or sendmail.mc files...I kindly ask someone to help me to configure the system.Thanks in advance,Roman
# 2  
Old 12-15-2010
/etc/mail/sendmail.cf (depends on sendmail version)
Code:
# Relay all non-local mail to the "Smart" relay host (DS) via smtp:
#      This macro is optional. If you wish to send all non-local mail         
#      to a smart relay via SMTP just set macro S (DS) to the name of the 
#      smart relay.  If this macro is not set, then all mail addresses to     
#      a non-local user will be send to the relay.                             #
 .
 .
 .
# "Smart" relay host (may be null)
DShostname.domain
 .
 .
 .
 .

# 3  
Old 12-15-2010
Further to DGPickett we must ensure that mail server is in /etc/hosts AND the the fully qualified host name of the host server is in /etc/hosts too.
Mentioning the same server twice is deliberate.
It doesn't have to be ".com", this is just an example.

Code:
# Example /etc/hosts with example IP addresses
100.100.100.100 myserver.mydomain.com myserver
101.101.101.101 myemailserver.mydomain.com myemailserver


Hope this helps.
# 4  
Old 12-17-2010
Security bits, I guess!

If all else fails, you can send mail direct to the remote host many different ways. I use a simple script and telnet, but I am pretty sure someone wrote a tool for that. You could slip it in place of mail, mailx and sendmail. All too often, I seem to be on hosts with no easy way to toss a little data out! Of course, if you also need to receive mail, that complicates things a bit.
# 5  
Old 12-21-2010
oh guys, it helped!!!
Thanks so much!!!

But now I have one more question - i can't send mail locally, to root for e.g. Could you please let me know the reason?
Can it be bcz I wrote something wrong in /etc/hosts?

Thanks in advance,
Regards,
Roman
# 6  
Old 12-21-2010
Well, there are a number of sendmail config fields to define when email is for here. Try sending to root@localhost, root@127.0.0.1, other users at localhost. You can test rewrite rules that define when mail is local or not using:
Code:
echo 'mail address' | sendmail -bt

PS: The mnemonic for that option is Become Tester, as opposed to become daemon!
Last edited by DGPickett; 12-21-2010 at 01:08 PM..
 
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