thanks for your replies
the problem is that spam/blacklisting is being used as an excuse
whats actually happening is that the office staff are not sending it to half the people as they get bored and stop after about 50 addresses
they also send it as a CC to everyone so you get an email with a header three times the size of the email
I know that the email addresses are valid as we had a memebr of staff ring round for everyones current address. Up til this point i used to get communications , once they did this , it stopped , I guess I'm more than 50 addresses down the list !
Thanks
any more ideas keep em coming