Hey David, Unfortunately there is nothing out of box that allows you to mask the input to the email field on forms. You can mask input for "Text" fields but this requires you to put the exact number/letter/character sequence that you want which is really unknown/not possible for email. I agree it would be fantastic to be able to mask input so someone is not allowed to use most of the free email providers, but currently that is not currently available (maybe start an idea if one does not already exist?). Some ideas for workarounds in this scenario: Get with a developer who can write you some Javascript to make the form unsubmitable if the email contains "gmail, yahoo, hotmail, etc.". Serve custom error message so prospects can correct. Best solution but requires a technical resource to implement. This will also majorly impact your numbers if you are used to capturing these email addresses Update your email field to say "Business Email" as opposed to just Email Address May prompt/reminder users to use their work email instead of personal email. Not bullet proof but could help. Tell prospect you are going to email them the ebook on your landing page and dont make the asset available on the TY page. This isn't as common but forces a user to provide a valid email address or they cannot access the content as it it emailed to them as opposed to made available on the TY page. In all honesty, if you are seeing a bunch of fake information for an asset, it tells me that the asset is very valuable and gets interest so I would consider ungating that particular asset to allow anyone to access it without information then make a secondary offer for a free trial or demo that you capture their information with. In marketing, we are often too focused on our company goals (MQL's and whatnot) and forget that we really should be focused on adding value before asking for information from people. People are much more willing to provide their info to someone they trust and feel provides value as opposed to someone who wants to call every person who ever consumed something on their site. Philosophically hard for us to do this as Marketers as we hurt our own success metrics (volume), but feel this strategy really pays off in the long term. If people don't want to be known, they really dont want to be emailed or nurtured either so there really is no value in creating them in your database to begin with. Just my 2 cents though.... good luck! Sincerely, Keith Nyberg
... View more