[exim] Hotmail

Hi,

Recently (Mid-January 2008) Hotmail has developed some intermittent
delivery problem with email being
sent through our server.

* A new message to a hotmail address is discarded by Hotmail and never
shown to the user
* A reply to a message - to a hotmail address - is delivered reliably
* All email from Hotmail to our server is delivered reliably

Mail logs show mail is queued correctly on the Hotmail servers in all
cases - any suggestions as to why
mail is suddenly being silently dropped?


Thanks,
David