mail adress spamcheck - SERP Analysis

https://kickbox.com/email-spam-tester/

https://www.ipqualityscore.com/email-deliverability/email-spam-test-checker/

https://mxtoolbox.com/blacklists.aspx

https://www.mail-tester.com/

https://tools.emailhippo.com/

https://www.mailgenius.com/

https://cleantalk.org/email-checker

https://www.experte.com/spam-checker

https://mailmeteor.com/email-checker

https://knowledgebase.constantcontact.com/email-digital-marketing/articles/KnowledgeBase/21985-Check-your-spam-score?lang=en_US