I thought I should post an update to my Hotmail problem.
I recently signed up to
https://postmaster.live.com/snds/ - which showed
the amount of spam I was forwarding to Hotmail servers. (300 per day,
90%+ spam)
This is almost certainly why they are silently dropping email my users
send through them now.
I found 2 old catchall's set on domains I had forgot I was even hosting :-)
These have now been removed and im waiting to see tomorrows statistics
from Hotmail...
I hate to say it - but my opinion on Hotmail has changed somewhat. My
opinion will be fully reversed - if when my spam to them stops, they
start delivery email again..
- Dave