All accounts in my reseller account spammed

[surfgatinho]

Hi
I recently received a spate of spam (nothing new there) but what was strange is where it was addressed. All the addresses where sales@ and 9 of my domains held on the same web hosting reseller account. What is stranger is 4 of these domains have no public resources associated with them ie empty accounts and one is an email only account. So there is no way they could have been spidered.
Also these accounts exist on several different machines, so the common theme is my reseller account.
I have several domains outside my reseller account - no spam.
No my hosting company (Fasthosts.co.uk) say there is no possibility the details came from them. They were actually particularly unhelpful. So where else could this collective information exist?

Any help/suggestions greatly appreciated
Chris

 

[chiph]

Could they have gotten it from a whois record initially, and then used your contact info to find other domains you own?

Chip H.

 

[surfgatinho]

It did occur to me that the only other place this info is held is in the whois records but none of the multitude of other domains names I hold were affected.
Plus, why would anybody specifically target the same person to spam?
It's all quite odd

 

[dkediger]

They're just sending out to common addresses...
sales@domaina.com
sales@domainb.com
.
.
.
sales@domainz.com
webmaster@domaina.com
webmaster@domainb.com
.
.
.
webmaster@domainz.com

and on and on and on.

They know that most of those are common accounts for any domain, so they'll more than likely go through.

 

[surfgatinho]

So how comes only my domain names within my reseller account including some quite odd sub domains eg devon-dorset.foo-foo.com which have never had any files hosted.
Also I'm not aware that sub-domains are listed with whois.