[exim] retry timeout confusion

I'm pretty sure this is user error due to lack of understanding of
something, but.... why was this mail timeouted out and an NDR send
when the retry's should haev happeened for 2 weeks?

# exim -brt domain.co.uk
Retry rule: * * F,6h,15m; G,16h,1h,1.5; F,2w,6h;

Jan 30 04:05:51 fallback exim[25860]: 2009-01-30 04:05:51 +0000
1LSkdb-0006j6-Jq <= sales@??? H=(relay...) [...] P=esmtp S=7200
id=E1LSkea-0002gp-O0@jester... for user@???
Jan 30 04:05:52 fallback exim[25862]: 2009-01-30 04:05:52 +0000
1LSkdb-0006j6-Jq == user@??? R=lookuphost defer (-1): host
lookup did not complete
Feb 4 16:23:40 fallback exim[11979]: 2009-02-04 16:23:40 +0000
1LSkdb-0006j6-Jq == user@??? routing defer (-51): retry time
not reached
Feb 4 16:29:52 fallback exim[15459]: 2009-02-04 16:29:52 +0000
1LSkdb-0006j6-Jq == user@??? R=lookuphost defer (-1): host
lookup did not complete
Feb 4 16:29:52 fallback exim[15459]: 2009-02-04 16:29:52 +0000
1LSkdb-0006j6-Jq ** user@???: retry timeout exceeded

Feb 4 16:29:52 fallback exim[15500]: 2009-02-04 16:29:52 +0000
1LUkdM-000420-P6 <= <> R=1LSkdb-0006j6-Jq U=Debian-exim P=local S=8064
for sales@???
Feb 4 16:29:53 fallback exim[15504]: 2009-02-04 16:29:53 +0000
1LUkdM-000420-P6 => sales@??? R=lookuphost T=remote_smtp H=...
[...]
Feb 4 16:29:53 fallback exim[15504]: 2009-02-04 16:29:53 +0000
1LUkdM-000420-P6 Completed