I’m having a similar problem.
I have a double opt-in setup using a form designed in the Mailchimp for WordPress plug-in.
Last week this was working fine and I started getting emails being captured.
However, I have tried a few different email addresses for testing, and none are receiving the confirmation email that should be sent in return.
Please advise on what I need to check to locate the issue.
Cheers
Pev
The website is https://www.sophrosynergy.com
