Excellent news. I have a domain that I basically just use for my email and it's a dot com. Someone else has subsequently registered the dot net for their business and they often forget that. So they fill out something that and use the dot com as their email address. I then get sent things that aren't supposed to be going me and relate to their business. Insurance renewals, exhibition bookings etc. as well as client bookings, speculative offers for goods etc. I did set up an automatic reply explaining that they might be looking for the dot net version.