I have been aproached by an employee of the company I work for asking how she can block emails which an ex boyfriend of hers is sending her.

I was simply going to "block sender" or "create a rule" ( we use Outlook Express)

However it appears that he is telneting in to a Mail server and forging them that way.

I cant block sender beacause he uses a different "email from" address each time.

The employee has warned him not to send them but he keeps sending them.

She has asked me not to report the matter further and I would prefer to try and block them if I can.

It appers he is using a bt internet mail server, if all else fail i will report the matter to them with the relevent message ID's.

Can anyone give me any ideas how I could block them please?

Thanks!