Unable to pop emails on your Cpanel server? Check /var/log/messages :
Oct 14 22:48:51 server popa3d[13698]: Didn’t attempt authentication
Oct 14 22:48:55 server popa3d(pam_unix)[13772]: check pass; user unknown
Oct 14 22:48:55 server popa3d(pam_unix)[13772]: authentication failure; logname= uid=0 euid=0 tty= ruser= rhost=
Oct 14 22:48:57 server popa3d[13772]: Authentication failed for UNKNOWN USER from xxx.xxx.xx.xxx
One of the quick fixes for this is to check for pop services like popa3d, popa3ds etc configured under xinetd. You can get inside /etc/xinetd.d for these files and disable the services by editing the files or removing them permanently. Once its done, go ahead and restart xinetd and cppop.
To restart cppop you can use the script /scripts/restartsrv_cppop
Now, you can continue popping the emails.
