If you can write code, you can spin up a VPS or a lamba function (or whatever) for pennies per month, to be a HTTP POST target, and forward messages to whomever

If you can write code, you can spin up a VPS or a lamba function (or whatever) for pennies per month, to be a HTTP POST target, and forward messages to whomever you hard-code into it. Version 0: make sure you limit it to a specific set of recipients, because if you leave it open ended, you will get reported and shut down for abuse. Version 1: Spot a pattern of fields that are clearly from a bot, and drop the message silently if you can, so as not to reveal your filters. Version 2..14: Repeat step 1 a few dozen times, till a new wave comes a few years later Version 15: realize messages wern't being sent for a few weeks, because something went wrong/out of disk space/some random glitch, and add monitoring Version 16: Consider a database with an interface if you can't reliably email the target because the messages are marked as spam by the target's spam filter, and figure out how to white list your form Version 17: Consider if the value brought by the form makes it worth it to consider a third party ..... FWIW, I've done this for a client. I'm somewhere around version 15 .... :-/