Hello Friends,

I have got stucked to one very important query. I have provided Email functionality in my web application. It has been found that my emails are going to gmail account but those are not going to yahoo and hotmail account.

I have also observed that my mails are going to particular workgroup of organization but not to any other mail recipient. I have followed all the settings in web.config as well as IIS 6.0.

Please guide me about the same.

Thanks & Regards,
Nandkishore

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Give people what they expect and do it cheerfully.

Normally, sending an email from a website to a local SMTP server either completely works or it doesn't. There are no half-measures to this. It is more likely that the SMTP server that you are using has routing problems. Have you tried a different SMTP server to see what happens?

Is the same application that had problems with SPAM in the queue folder?
See: http://www.simple-talk.com/community/forums/thread/40932.aspx

If it is, then it's most likely to be that your server has been blocked by the ISP's for spam. I would check your IP address at
www.dnsstuff.com to see if it is listed in any blacklists etc.

Your server was left as an open relay (see: http://en.wikipedia.org/wiki/Open_mail_relay - you can also test your server here: http://www.abuse.net/relay.html), which is a spammers dream. This means they can send as much email (spam) as they like from your server. SMTP was left unprotected in IIS for some crazy reason, and it's the most common way of spammers getting the message out, without compromising themselves.

Regards
Greg