I've been with Mailchimp for many years and had it integrated with my shopify site. I'm still with mailchimp + ShopSync because I'm the only one who handles my site and I just can't deal with learning something new right now.
Even before Mailchimp and Shopify split ways, I was getting a lot of suspicious email sign ups on my site. Now it has really gotten excessive and my welcome email that is an auto responder has been flagged as abusive by Mailchimp because of a high number of spam reports from the welcome message that is only sent to people who sign up through my shopify site.
Does anyone know why I would be getting so many sign ups? I seriously doubt they are genuine customers. I'm not getting any sales. I would love some advice on what to do.
You may be getting spam signups from bots. To fix the problem of too many signups that aren't genuine, you'll need to enable a recaptcha to weed out the spam bots and disqualify them from signing up.
If you want to prevent being flagged as spam, you may need to enable the double opt-in with Mailchimp. This would send them an email asking them to confirm their subscription, then it would send the welcome email once they have accepted. It would prevent people from being falsely signed up for your newsletter because if they don't click confirm, then Mailchimp doesn't add them to your list.