Sendmail.v7
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YUM
yum remove postfix
yum install sendmail sendmail-cf
Sendmail Setup
export MAILNAME=`grep DOMAINNAME /etc/sysconfig/network|cut -d"=" -f2`
/bin/cat << EOF >> /etc/mail/access # USE>>>>>>>>>>>>>>>>>>>>>makemap hash /etc/mail/access.db </etc/mail/access EOF
echo Connect:$MAILNAME RELAY >> /etc/mail/access
/bin/cat << EOF >> /etc/hosts.allow
sendmail: ALL EXCEPT \
203.204.204.204
EOF
sed -ie 's/.*DaemonPortOptions.*$/#O DaemonPortOptions=Port=smtp,Addr=127.0.0.1, Name=MTA/' /etc/mail/sendmail.cf \
&& grep DaemonPortOptions /etc/mail/sendmail.cf
sed -ie 's/.*Port=smtp,Addr=127.0.0.1.*$/dnl # DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA'\'')dnl/' /etc/mail/sendmail.mc \
&& grep Port=smtp,Addr=127.0.0.1 /etc/mail/sendmail.mc
/bin/cat << EOF >> /etc/mail/local-host-names $MAILNAME EOF
systemctl
systemctl status sendmail systemctl start sendmail systemctl enable sendmail
ERROR
SYSERR(root): savemail: cannot save rejected email anywhere
/etc/aliases
MAILER-DAEMON: postmaster
To the top of the file and make sure root (postmaster) goes some where valid.
Smart Host
Using Google
For Sendmail V8.12 and above 1. Set your authorization informations by putting the following line to /etc/mail/authinfo file:
AuthInfo:relay.dnsexit.com "U:USERNAME" "P:PASSWORD" "M:PLAIN"
Note: Replace USERNAME and PASSWORD with the DNSEXIT mail relay username and PASSWORD.
2. Add following lines to /etc/mail/sendmail.mc (check if apropriate settings doesn't already exists):
define(`SMART_HOST', `relay.dnsexit.com') FEATURE(`authinfo')
3. Update sendmail.cf and access.db files:
cd /etc/mail m4 sendmail.mc >sendmail.cf makemap hash authinfo < authinfo
4. Reload or restart sendmail:
systemctl restart sendmail
For any version of Sendmail
1. Set your authorization informations by adding following line to /etc/mail/access file:
AuthInfo:relay.dnsexit.com "U:USERNAME" "P:PASSWORD" "M:PLAIN"
Note: Replace USERNAME and PASSWORD with the DNSEXIT mail relay username and PASSWORD.
2. Add following lines to /etc/mail/sendmail.mc (check if apropriate settings doesn't already exists):
define(`SMART_HOST', `relay.dnsexit.com') FEATURE(`access_db')
3. Update sendmail.cf and access.db files:
cd /etc/mail m4 sendmail.mc >sendmail.cf makemap hash access <access
4. Reload or restart sendmail:
systemctl restart sendmail
Note: If it does not work, you need to make sure the saslauthd is running on the server. saslauthd is the daemon for sending authentication . You may issue "service saslauthd start" to start the service.
testing
mail -s test fred@dagg.net.nz <.bash_profile
Then
tail -f /var/log/maillog
Finally
emacs /etc/aliases
and change
root: fred@dagg.net.nz
to finish
newaliases
What you might like to do now is from this server send an email to root and see if your alias gets it.
And Test:
mail -s test root <.bash_profile
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