Got this reply to an e-mail I sent out ealier today from my jodo account (within a reseller plan):
Hi. This is the qmail-send program at bouncehost.
I’m afraid I wasn’t able to deliver your message to the following addresses.
This is a permanent error; I’ve given up. Sorry it didn’t work out.
the mail4 IP had someone send some nigerian bank scam emails out, we have already suspended the user(not to be unsuspended ever), and submitted the results to the blocklists about what wehave done. But, it will be some time before it is de-listed.