How to install a POP3 server (Qpopper) on RedHat Linux

1). Download qpopper from http://www.eudora.com

2).Untar the archive

3). Enter the new qpopper directory

4). Run configure

5). Compile qpopper

6). Copy the new binary into /usr/local/bin

7). Set the permissions on the qpopper binary

8). Edit or create file: "/etc/pam.d/pop3" with the following content:

auth required /lib/security/pam_pwdb.so shadow
account required /lib/security/pam_pwdb.so
password required /lib/security/pam_cracklib.so
password required /lib/security/pam_pwdb.so nullok use_authtok md5 shadow
session required /lib/security/pam_pwdb.so

9). Edit the file "/etc/services" and change the following line

pop3 110/tcp pop-3 # POP version 3

to:

pop3 110/tcp # pop3 service

10). Start qpopper

11). Test qpopper

Done.

Related:
How to automatically start and stop Qpopper
Tripanel tutorials index

Reference:
Eudora's Qpopper Website
Red Hat Linux Website