Translations:FAQ/227/en

Or, if this is too much work for you, then you can also just remove all examples or not include spamfilter.conf from your unrealircd.conf. They are just (old) examples anyway.

More information
The information from above was about example spamfilters that shipped with UnrealIRCd. You may also have added custom spamfilters yourself. For those, if you use method posix then you need to change these to method regex. See the FAQ item POSIX spamfilters are deprecated for more information.