MailTraq and hotmail

[Joneh]

Hi,

I'm wondering if any of you guys have encountered problems sending email to hotmail accounts? My client is using mailtraq for some awful reason, and NAV. Norton reports that mail to hotmail accounts were not delivered, and the mailtraq log reports complaints about sending unsolicited commercial bulk emails etc. They can send to any other email address with no problem, so it must be down to the MSN blocking them. Has anyone come accross this and knows an easy work-around? Obviously they are not spamming people, just trying to send emails to their clients.

Cheers,
Jon