Better fuzzy logic when trying to piece together threads
Better fuzzy logic when trying to piece together threads

if an email has a missing or invalid IRT, let's try to be better at
matching by topic, provided the new email is newer than what we can
find.

Humbedooh/ponymail,Humbedooh/ponymail,quenda/ponymail,jimjag/ponymail,rbowen/ponymail,jimjag/ponymail,quenda/ponymail,rbowen/ponymail,quenda/ponymail,rbowen/ponymail,jimjag/ponymail,Humbedooh/ponymail,jimjag/ponymail