send and receive mail using sendmail

tanveer · 12-04-2005, 11:44 AM

Hello all,
Recently I got the task to setup sendmail so that users can send and receive mails both locally and also globally.
Say, my address is tanveer@xyz.com.bd
Using this address I should be able to send/receive mails to all local users(user@xyz.com.bd) and can also be able to send/receive mails from outer domains like tanveer@yahoo.com.
I am now following this link
http://www.linuxjournal.com/article/5507

My confusion is, as I have no DNS server so should I tell my ISP to set the MX record in their DNS?

.
Thanks in advance.

-Tanveer

tanveer · 12-06-2005, 08:52 PM

Hi all,
I am following these steps and have some confusions.

PHP Code:


			
1.First lets say your machines IP is 192.168.19.17 and your DNS servers IP is 192.168.19.191

Question:1= As we have no DNS so should I use ISP's DNS server's address?



2.Your Domain name is .com.bd 



[tanveer@loalhost root]# netconfig

Just put your machines IP in IP address: 192.168.19.199

Default Gateway : 192.168.19.195

Primary Nameserver :192.168.19.195

Question:2= We are using another machine with proxy server so here should I put that machines IP as GW or the ISP's?



To make effect of the change now without rebooting just do following:

[tanveer@loalhost root]# service network restart



To change hostname to mail.xyz.com.bd just gave

[tanveer@loalhost root]# hostname mail.xyz.com.bd



[tanveer@loalhost root]#  vi /etc/hosts

Add this line

192.168.19.101      mail   mail.xyz.com.bd    xyz.com.bd



[tanveer@loalhost root]# vi /etc/sysconfig/network

Change the line with HOSTNAME from HOSTNAME=localhost.localdomain to HOSTNAME=mail.xyz.com.bd

GATEWAY=DNS_servers_IP



[tanveer@loalhost root]# vi /etc/resolv.conf

nameserver 192.168.19.195

search xyz.com.bd



[tanveer@loalhost root]# vi /etc/mail/access

Add the line  192.168.19.    RELAY



[tanveer@loalhost root]# vi /etc/mail/local-host-names

Add these two lines here

mail

mail.xyz.com.bd

or only the IP address of your machine which is

192.168.19.17



[tanveer@loalhost root]# makemap hash /etc/mail/access.db < /etc/mail/access



[tanveer@loalhost root]#  vi /etc/mail/sendmail.mc

just comment the line by typing dnl in front of that line, starting with DAEMON_OPTIONS and says something about loopback address(127.0.0.1).



[tanveer@loalhost root]# m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf

[tanveer@loalhost root]# service sendmail restart

[tanveer@loalhost root]# vi /etc/services



uncomment the lines with imap and ipop3.

[tanveer@loalhost root]# vi /etc/xinetd.d/imap

Change the line with disable=yes to disable=no



[tanveer@loalhost root]# vi /etc/xinetd.d/ipop3

Change the line with disable=yes to disable=no



[tanveer@loalhost root]# service xinetd restart

Can anyone help me answering the questions?
I think DNS address will be ISP's and GW address will be the machines IP which we configured as proxy server.
Thanks in advance.
BR
-t@nveer

qs_tahmeed · 12-07-2005, 12:12 AM

Hello!

Am also from BD. For going online with your mail server you have to first register your domain name.
Then you can either set up your DNS by your own or ask your ISP to redirect mail to your mail server,
that is to set up the MX records in their DNS Servers.

And if you are keeping your Mail Servers behind Proxy or if you are using private IP in your
mail server you need to do some NATTING that can be handled by your Proxy server so that your.
This was your gateway address for the Mail server will be the IP address of the PROXY server.

Bye...

In either way, if you are not using your own DNS servers, you have to use their DNS servers IP for
your local network.

Also you dont need both IMAP & IPOP3 at the same time - any one can serve your purpose.

tanveer · 12-07-2005, 07:21 AM

Hi Tahmeed,
Thanks for taking your time.
Just as I thought but you cleared my confusions on those, so thanks.

BR
-Tanveer