I have recently typed my contact details on a few sites and they either go into a black hole or are forwarded to an email account that isn’t monitored as haven’t had any contact from the companies in question.
Rule #1 – it’s a good idea to send an auto reply so the person that’s taken time to fill in their details knows you have received them
Rule #2 – a good one if it may take time to deal with their enquiry. With the auto reply send a whitepaper or link to some content that may be relevant to their enquiry.
Rule #3 – don’t forget to follow up! It’s amazing how many leads aren’t followed up – can you afford to leave cash on the table?
Getting someone leaving their details on your website is the start – you then need to ensure your engagement strategy is strong.