Hi!
Outgoing imagestation.com mail servers, such as zms0.imagestation.com, are listed in AUDNSBL and SORBS - as servers sending to spamtraps. But they are not listed in SBL or Spews. So... it's ambiguous.
I assume that there are quite a few willing subscribers to the imagestation news letters though, so there is probably a high level of collateral damage if it's listed.
I have whitelisted it in WS for now, and same for this one, we will watch careully what comes in :)
Thanks! Raymond.