Sendmail - disable on workstation & enable on server

[Irfan Ahmed_1]

Hi unix fundus,

I want to know how can I disable sendmail in workstations & keep sendmail active only in the server. I am using HP-UX 11.00. Which all files need to be changed.

Is there any way in which by just doing some changes in the server will solve my problem

Thanks

[Slawomir Gora]

Hi,

modify file

/etc/rc.config.d/mailservs

[Sunil Sharma_1]

edit /etc/rc.config.d/mailservs

in server change it to this

export SENDMAIL_SERVER=1


and on workstation
export SENDMAIL_SERVER=0


Sunil

[Andrea Rossi]

remember also to set
SENDMAIL_SERVER_NAME=
in mailsrvs, which takes pecedence over SENDMAIL_SERVER variable, and
domain mydom.com
in your resolv.conf

[Geoff Wild]

On workstation:

/sbin/init.d/sendmail stop

In /etc/rc.config.d/mailservs
SENDMAIL_SERVER=0

In cron:

# Make sure any queued mail is delivered, as sendmail isn't a daemon anymore
0,30 * * * * /usr/sbin/sendmail -q

On server, make sure SENDMAIL_SERVER=1 and see if it is running:
ps -ef|grep sendmail

If not:

/sbin/init.d/sendmail start

You may also have to configure sendmail on server in /etc/mail/sendmail.cf

# who I masquerade as (null for no masquerading) (see also $=M)
DMyourdomain.com

# "Smart" relay host (may be null)
DSyourmainmailserver

Rgds...Geoff

[Steven E. Protter · Accepted solution]

Disabling the daemon is only half the issue.

So long as the binary exists and networking is set up properly, the workstation will still be able to send mail.

The daemon only has to be up for the box to accept mail.

So if you follow the solutions provided thus far, a web server or application or cronjob on the workstation will be able to send mail.

To stop that you can do several things:

1) Change permissions on sendmail binary to not executable.
2) Change networking so hostname resolution fails.
3) Make the sendmail.cf file relay to a server that won't accept mail.

Neither of these ideas is terrific. To provide further advice I would need to know why you are disabline sendmail. If its to stop mail acceptance, the prior posts will work. If its to stop outbound mail on the workstations, more work is required.

SEP