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In the previously, I'll try to seach the suitable Postfix from http://www.postfix.org/ but there are only the postfix source code available for download. Are there any package available? Kindly advise.
About RPM package for the Postfix.
Thank you for recommended the www site.
But I can't find the suitable package for Linux 2.4.21-15.ELsmp.
Which package is suitable for me? kindly advise
And finally, I'll need configuring a pop3/imap server to get mail.
Have you checked that no postfix packages are included with your redhat cd's?
I have checked on the RedHat web site, and they should be there.
When you look for rpm's, it is not the kernel, but the distribution that counts.
eg. RedHat Linux 4 with a 2.6 kernel will use the same packages as RedHat Linux 4 with a 2.4 kernel, but not the same packages as Mandriva 9.0 with a 2.6 kernel. You could look for packages for RedHat Linux on the internet, but they should be on your cd.
Webmin is a useful management interface. You don't "need" it, but it can help a lot.
I check the Red Hat Enterprise release notes from the internet.
I found "postfix-pflogsumm" in packages list.
And can I also say that, once the "Linux 2.4.21-15.ELsmp"
was completely installed and postfix and the kernel-rpm should also installed.
But I hope and I should need to confirm the postfix and RPM.
Are there any command line that I can check for with?
e.g. "showrev -p" for solaris OS. but how about Linux?
I should ask this at the beginning.
As you say, you are prefer Postfix instead of other Mail servers,
may I know why? I check from the book -
"this free mail servr was designed with security in mind and executes most
function as an unprivileged user in a restricted chroot environment"
Is that the reason?
You can't really. All you can do is something like 'rpm -qia |grep pop'. I know it does not help much. You could also read the documentation, or search for specific pop server packages on your system, and see if you have them.