SMTP not sending emails - going to BadMail folder

Hi,

Really hoping someone can help here.... this is now driving me crazy...

I am using windows xp pro sp2, iis5.1 and asp.net (VWD) to develop my website. I have got to the part where i am creating a new user using the createnewuserwizard and wanted to set it so that an email gets sent to the new user.

I think i have problems with my SMTP settings, as the ASP.net side seems to be ok, don't get any errors here. But the mail goes into the BadMail folder and doesn't send!

I've searched on forums for solutions and tried a few things but still no joy!!!

Im using the SMTP deafult virtual server, and localhost. I have this in my web.config :

<system.net>

<mailSettings>

<smtp from=".................@hotmail.com">

<network host="localhost" password="" userName="" />

</smtp>

</mailSettings>

</system.net>

and used the ASP.NET Configuration Wizard to set up this info. (does it have a problem with sendng from hotmail accounts??? - i also tried with a wanadoo one, and still no luck)

I have added 127.0.0.1 to the Relay options. and added port 25 to the (all unassigned) IP address bit.

Does ANYONE have any idea why my mail isnt sending??? Any advice/help would be MUCH appreciated.

Many thanks,

Sandy