Sometimes you own a domain name and want to receive email to the domain, but it's a pain in the butt to set up a mail server or it seems overkill to set up an email account with a provider just so that you can forward the mail to your regular address.
Proposal
Build an SMTP relay which could simply accept mail on your domain and route the name portion to any email address(es) you provide; you could even supply scripts that would trigger actions as opposed to routing the email.
Problem
Sometimes you own a domain name and want to receive email to the domain, but it's a pain in the butt to set up a mail server or it seems overkill to set up an email account with a provider just so that you can forward the mail to your regular address.
Proposal
Build an SMTP relay which could simply accept mail on your domain and route the name portion to any email address(es) you provide; you could even supply scripts that would trigger actions as opposed to routing the email.