Why Mailtrap Updated its SMTP Host

If you use Mailtrap and haven't updated your host setting, read this. Why Mailtrap Updated its SMTP Host

If your settings look like this:

 define('PERCH_EMAIL_HOST', 'mailtrap.io'); // This no longer works

Change it to

 define('PERCH_EMAIL_HOST', 'smtp.mailtrap.io'); 

I've been wondering for longer than I care to admit why local forms weren't submitting! Ah well. Hope this helps any fellow Mailtrap users.