I experience this problem...

[email protected]
unrouteable mail domain "martindowson.com"
[email protected]
unrouteable mail domain "hotmail.com"
[email protected]
unrouteable mail domain "hotmail.com"
[email protected]
unrouteable mail domain "mondrian.com"

But I do get some 'confirmations' from other domains. Is this down to a blocking on the server or is it an issue with 7.0.2?