New Outlook problem mailing a group

  penhit 14:04 17 Jul 2009

I want to send a newsletter to a group of 100+ contacts through Outlook 2003
I used to be able to do this with no problem, but since changing ISP have found I cannot circulate the newsletter to all the group. I now get the message '452 too many recipients'
The ISP says it is a software problem, but I cannot find a solution via microsoft support.
Help. Any ideas how to troubls-shoot this?
Many thanks

  recap 15:39 17 Jul 2009

Found this on a VistaForum click here

  Clapton is God 21:01 17 Jul 2009

Duplicate thread click here

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