SPAM is when a someone sends you an email without your permission or knowledge of them using your email address without your permission. Many businesses will aggressively try to use your email address to sell their product. They get permission to use your email address from the Terms of Service on their website and many companies will use Shaddy, unethical and in many times illegal methods to harvest email accounts.
For this reason, many different entities on the Internet will make a good faith effort to attempt to identify SPAM providers and block them. The software you use such Web Browser or Email Client to read your email will also try to identify SPAM. Each has different rules for what constitutes SPAM.
You as the custodian for your account at EmailsAndSurveys.com are responsible this privilege is not abused. If your goal is to blast mass emails at subscribers, we do not want your business. We want subscribers that are providing a quality service to their customers. Please be advised that no matter what steps you take, and email can be sent to a Junk filter and you must manage your email campaigns carefully to ensure they arrive in an In Box.
To learn more we recommend you read the complete article on best practices for avoiding SPAM.