Do you use vi (or similar) to edit the /etc/rc.tcpip file?

There is no need for this, AIX has a command to enable and/or disable entries in the file.

 

Before Changes

grep start.*sendmail /etc/rc.tcpip

start /usr/lib/sendmail "$src_running" "-bd -q${qpi}"

 

Diable sendmail.

chrctcp -d sendmail

 

Confirm the Change.

grep start.*sendmail /etc/rc.tcpip

#start /usr/lib/sendmail "$src_running" "-bd -q${qpi}"

 

Enable sendmail.

chrctcp -a sendmail

 

Confirm the Change.

grep start.*sendmail /etc/rc.tcpip

start /usr/lib/sendmail "$src_running" "-bd -q${qpi}"

 

Disable sendmail and stop the daemon.

chrctcp -S -d sendmail

0513-044 The sendmail Subsystem was requested to stop.

 

Enable sendmail and start the daemon.

chrctcp -S -a sendmail

0513-059 The sendmail Subsystem has been started. Subsystem PID is 6947294.