You should try using a Syslog server instead to capture router logs... But if you need to use SMTP, then any of them can be setup not to require auth, just don't select that option.. You will need to ...

Use the documentation. Man syslogd(8). Specifically you want the '-r' option. You'll probably need to modify your init scripts to get it to take, or they may be a configfile in /etc/defaults or ...

Lance Spitzner of the Honeynet Project (www.honeynet.org) suggests a trick that's useful for honey (decoy) nets and maybe even for production DMZs: stealth logging. This trick allows a host connected ...