So sorry to hear your members are seeing this warning! Is this program being used to scan incoming mail? If so, I would suggest whitelisting Constant Contact. We have seen cases where email security programs show subscribers a message like this in cases where they are mailing to people within their own company. I also took a look and can see you were able to speak to our Deliverability team about your emails as well. If you have any further questions please give a call back in to this team.
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