Prevent sending first mail conditionally, but always send the second one

Hi!

I recently created a functionality to prevent sending mails conditionally using the wpcf7_skip_mail hook, it works fine, but the problem is with the Mail(2), the one that is often used as an autoresponder, it is sent only if the first one passed the filter.

I need to send the second one regardless the condition, but keeping the behaviour described earlier for the first one.

Thanks in advance for your support.