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Update multiple Dynamic DNS servers using ddclient

Running Linux, ddclient is highly suggested software for updating DynamicDNS servers. It supports updating a variety of servers. Some of them are dyndns.com opendns.com and no-ip.com. ddclient supplies documentation to update multiple hostnames (on the same server) but does not have an example with multiple servers. Here is an example that covers all those combinations. 
## ddclient configuration file
daemon=600
# check every 600 seconds
syslog=yes
# log update msgs to syslog
mail-failure=your@emailaddress.com
# Mail failed updates to user # requires sendmail installed.
pid=/var/run/ddclient.pid
# record PID in file.
ssl=yes
#use ssl

## Detect IP with our CheckIP server
use=web, web=checkip.dyndns.com/, web-skip='IP Address'


protocol=dyndns2, login=user1, password=YOURPASSWORD \
some.selfip.org

protocol=dyndns2, login=user2, password=ANOTHERPASS\
someother.selfip.org

protocol=dyndns2, server=updates.opendns.com, login=user3, password=psswd3 \
home
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