Legitimate websites flagged as phishing

I’m unable to connect to the mailchimp newsletter domain: https://us19.campaign-archive.com/

I thought this might be a DNS issue so was about to test it using https://tools.keycdn.com/performance , however that’s also being blocked.

Both are being flagged as phishing URLs in Avast, which seems odd. I haven’t been able to find any other details in virustotal for example that would indicate these as being malicious links.

Please break active URL links, to suspect sites to avoid accidental exposure change https to hxxps to break the link.
Reporting a Possible False Positive File or Website - https://www.avast.com/false-positive-file-form.php.
You should get a response in a day or two.

A screenshot of the Avast Alert window with Details option selected might also help.