I own 2 domains, and use Gmail as my mail client for both. My web host is Crazy Domains, and they've confirmed that the MX settings are correct - I'm able to send and receive emails directly, however neither website will successfully send emails to my inbox using the contact forms I have set up. Note that i've had no issues receiving emails through my first website/domain for the past 2 years. All of a sudden, it no longer works, yet i've changed nothing.
I've tried several plugins, setting the correct SMTP details, however when I try to send a test email, I get the error : SMTP -> ERROR: Failed to connect to server: Connection timed out (110).
I've deleted and reinstalled plugins (using Formidable Pro for my contact form), but nothing seems to work.
It's driving me mad, and I've no idea what to do. Would love it if someone were able to help me out.