Sunday, March 2, 2008

What causes slow email connections ?

This only applies to users that don't use our email cluster for email services. For POP3 and IMAP connections, xinetd will make a connection back to the IP Address that has initiated the POP3 or IMAP connections. xinetd is trying to connect to the ident port to determine the user name of the person connecting. This will fail if the user is behind a firewall because the firewall will not respond to this connection. You can turn this off by editing /etc/xinetd.d/wp_ipop3 and /etc/xinetd.d/wp_imap and removing the lines:
log_on_success += USERID
log_on_failure += USERID
Then restart xinetd by typing:
/etc/rc.d/init.d/xinetd restart

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