The startup configuration file for sendmail is /etc/rc.config.d/mailservs . There are no options in this file to change the frequency with which sendmail checks the mail queue. In order to accomplish this, we would have to change the startup command line in /sbin/init.d/sendmail . Such a change may be overwritten if a new/updated version of HP-UX was installed.
Masquerading occurs when emails leave a mail server. The mail server will change the originating hostname to the masqueraded name; commonly, this will simply be the domain name of the originating organization, e.g., email@example.com being masqueraded to firstname.lastname@example.org . DNS needs to be updated in order for users on the Internet to be able to send emails directly to email@example.com . A DNS server needs to have an MX record detailing which machine is acting as the email server for the maabof.com domain; otherwise , emails cannot be delivered because there is no DNS MX record to direct DNS and hence tell sendmail where to send emails for the hostname known as simply maabof.com .
If the sendmail daemon is not running, outgoing emails will simply build up in the /var/spool/mqueue directory.
No, this is not a reasonable suggestion. The example assumed that all users had access to an HP-UX machine with the sendmail software installed and configured. Although sendmail can communicate with PC mailers, this was never discussed in the text.
You can use the script /usr/ contrib ./sendmail/usr/newconfig/etc/mail/cf/cf/gen_cf to build a default configuration file, or you can find a default configuration file in /usr/newconfig/etc/mail/sendmail.cf .