Sir,
I am trying to configure email delivery on my intranet
LAN. I am running Redhat 9.0. I have about 6
computers, hostnames are host11 upto host16. When I send a mail from userA@host11 to userB@host16.
It does not get delivered. It keeps sitting in the
/var/spool/mqueue. The question is what additional
configuration is needed to deliver this mail?
Presently, I am not connected to Internet. So, I have
not installed DNS. I am using /etc/hosts. All
computers are pinging each other. I have installed
sendmail on each. I checked up with # telnet localhost smtp
They all respond and show me that the mail daemon is
running. When I send mail to a user on the same host,
it gets delivered. For example, an mail from
userC@host11 addressed to userA@host11 is working
fine. But when I try to send the mail to a user to the
other host, it does not get delivered.
Quest1: How to configure the system, that the mail is delivered to users on the other hosts on my Intranet?
Hi Shiraz,
First off, you don't need to be running Sendmail on the client machines in order for them to be able to get their mail messages. The only machine that needs Sendmail installed and running is the mailserver itself. The client machines pick up their mail via either pop3 or imap. Personally I prefer imap since it keeps things nice and clean and gives the admin the ability to back up all users' email messages should one of the client machine's take a fit. Another reason for using imap protocol on the server and client is because should one of those "windows" clients take a fit and require to be reloaded the admin doesn't have to fight with outlook or outlook express to back up and retreive the email that was being stored on the client hard drive. With Imap everything remains on the server. The only thing the client downloads upon connection to the mailserver is the message headers, and then when the message is opened on the client the message is read in much the same way one reads a web page with a browser. The message content is downloaded to the client, but the message remains on the server until the client deletes the message header.
Quest2: My domain (mydomain.com.pk) is registered. The DNS servers for my domain are the DNS servers of the ISP. When my Intranet is connected to Intranet, I plan to install a DNS on one of my machines and a mail server with an MX entry in the DNS tables. Two of my users are very fond of Windows. So, I shall tell them to use their outlook express, and in the SMTP server and POP server fields in outlook express, enter the IP address of my mail server. Is this planning OK for using email on the Internet, for all my users?
actually, even though your network isn't yet connected to the internet you can and should be running DNS for your intranet machines so mail can be accessed and made available properly to the client machines.
-- Mark
"If you have found a very wise man, then you've found a man that at one time was an idiot and lived long enough to learn from his own stupidity."
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