Hai Kevin,
FWIW there is a long list of url shorteners as part of the
DecodeShortURLs plugin (sadly, no longer maintained), here:
It includes the one you just mentioned as well as a whole bunch of
others.
Kevin, perhaps DecodeShortURLs should become part of the default SA
distribution? It works really well in general, with the exception of a
few outstanding bugs that are fairly minor and likely easily fixable by
someone who knows what they're doing. The original owner no longer
maintains this, having moved to rspamd.
I'll certainly ask Steve. I know some of this work was based on gudo
from Karsten.
SURBL maintains a seperate list of shortners.
It has a little over 2040 entry's...
If that helps.
Bye, Raymond Dijkxhoorn - SURBL