How to relay mail to mail server from Unix ?


 
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# 1  
Old 07-22-2010
How to relay mail to mail server from Unix ?

Hi,

I need to send email notifications from Unix/Linux box to users using mailx.

In these Unix/Linux boxes mail is not configured however we are having mail server configured in our LAN.

Could you please provide instructions to configure relay in these boxes so that we can relay our mails to existing mail server from Unix/Linux boxes?

Thanks in advance.
# 2  
Old 07-22-2010
Code:
# alternatives --config mta
There are 2 programs which provide 'mta'.
  Selection    Command
-----------------------------------------------
*  1           /usr/sbin/sendmail.sendmail
 + 2           /usr/sbin/sendmail.postfix

Code:
 
# grep relayhost /etc/postfix/main.cf
 
# The relayhost parameter specifies the default host to send mail to
# no relayhost is given, mail is routed directly to the destination.
relayhost = myemailserver.mydomain.com
#relayhost = [gateway.my.domain]
#relayhost = [mailserver.isp.tld]
#relayhost = uucphost
#relayhost = [an.ip.add.ress]

# 3  
Old 07-23-2010
Hi ygemici,

I am trying to configure it on Solaris where I can't locate
relayhost /etc/postfix/main.cf file..
Could you please provide detailed instructions for this ?

Thanks..
# 4  
Old 07-23-2010
Hmm probably you use sendmailSmilie

then you must edit main config on mail client

Code:
# vi /etc/mail/sendmail.cf

find DS
and change like
Code:
 
DSmymailserver.domain.com

Actually i think it is not neccessary if your clients access to your DNS and if exists MX reco in local DNS zone and if mail server is configured..



If you configure for each domain diffrerent permission for incoming relay
you can edit

Code:
 
vi /etc/mail/sendmail.cf

add

Code:
 
access:
to:remotedomain.com

If you configure for each domain diffrerent permission for outcoming relay
you can edit


Code:
vi /etc/mail/access


add

Code:
Connect:mydomain.com              RELAY
Connect:10.10.1.100                  RELAY


Regards
ygemici
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