Thanks Fred. Sendmail was listed by our audit as a non-secure service. Must sendmail be started or is there any other alternative to send email? Think in Windows environment, blat & sendemail doesn't require an equivalent service to work so if there is some other ways of sending email, will be great, say using telnet: (does anyone has a script that could read in the content of a text file, ie line 1-3 below & then perform the steps below) : # telnet SMTP_Relay_IP 25 HELO 501 Syntax: HELO hostname HELO smtp.mypostfixdomain.com 250 hostname.mypostfixdomain.com MAIL FROM:<sender_id@external_domain.com.sg> 250 2.1.0 Ok HELO smtp.mypostfixdomain.com 250 hostname.mypostfixdomain.com MAIL FROM:<sender_id@external_domain.com.sg> 250 2.1.0 Ok RCPT TO:<recipient_id@xxxxxxxxxxxxxxxxxxx> 250 2.1.5 Ok RCPT TO:<root@xxxxxxxxxxxxxxxxxxx> 250 2.1.5 Ok DATA 354 End data with <CR><LF>.<CR><LF> line 1 line 2 line 3 *.* 250 2.0.0 Ok: queued as BAF8A200034 On Wed, Jul 16, 2014 at 12:58 AM, Fred Smith <fredex@xxxxxxxxxxxxxxxxxxxxxx> wrote: > On Wed, Jul 16, 2014 at 12:35:19AM +0800, Sunhux G wrote: > > I have got the firewall rule permitted from our RHEL 5.x & > > RHEL 6.x servers to our SMTP relay server (it's running > > RHEL 5.8). > > > > In the past, I recall I have a server that I could just issue > > mutt command below & it will send email out via that > > relay server : > > mutt -s "Test mail" -a /tmp/file.tar.gz abcde@xxxxxxxxxxxxxx < > > /tmp/mailmessage.txt > > > > > > Now all my servers (at another site) can't send email out. > > Did I need to set something at this site's server or is > > there any way that I could specify the SMTP relay server > > in the mutt command? In Windows, blat & sendemail > > allows me to specify the SMTP relay server. > > Assuming you've got sendmail installed, and are using the default > sendmail.cf, > become root, then: > > cd /etc/mail > vi sendmail.cf > > search for a line beginning with "DS", with a comment above it reading: > "Smart" relay host (may be null) > and change the line that reads just "DS" to read "DSyoursmarthost.foo" > or whatever the FQDN is of your smart relay host. there is NOT a space > between the "DS" and the FQDN. > > you'll probably need to restart the sendmail service afterward. > > -- > ---- Fred Smith -- fredex@xxxxxxxxxxxxxxxxxxxxxx > ----------------------------- > Show me your ways, O LORD, teach me your paths; > Guide me in your truth and teach me, > for you are God my Savior, > And my hope is in you all day long. > -------------------------- Psalm 25:4-5 (NIV) > -------------------------------- > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
