Please note there appears to be a bug of some sort when trying to use the integration for Active Campaign. It subscribes but does not trigger the confirmation email nor the autoresponder. Noted this:
Unfortunately, I am not familiar with Active Campaign. So would it be possible for you to check the steps I took below before posting this to our issue tracker, please?
It doesn’t look like our test account allows for autoresponders. Any chance we can get access to yours to test? No worries if that’s an issue, I can email them asking for a full featured account for our integration if not.