PHP form security issues

[awaken]

So, I recently made a change to our website that was very positive as far as lead generation is concerned. Our quote page hits almost double along with our conversions, but then it all went south. For some reason, even though we're still getting a huge number of hits to our quote page, we aren't getting any leads. Our quote form submissions have dropped off drastically.

We run our form through the tectite PHP formmail platform. I've checked everything and it all looks fine, so I just can't figure out what happened. The only event that I can think of is the day that all of this happened we received five spam emails back to back. Is there anyway that our form could have been hijacked or something? The only reason why I don't think so is because when we run test messages, we receive them fine.

Any suggestions?

[jatar_k]

are you getting submissions at all?

are they ending up in the junk folder? (maybe prompted by the spam and now some filtering thinking they're all spam)

do you track failures?

are you sure there wasn't a server upgrade or anything else in the time they stopped working

>> tectite PHP formmail platform

no clue what that is