Since Semrush cannot do this natively, you should pair Semrush with a tool. These tools scan a website's source code to identify which services they use.
SEMrush shows the IP addresses and hosting providers associated with a domain. email service provider checker semrush
To check a competitor’s ESP, follow these steps: Since Semrush cannot do this natively, you should
SEMrush does not have a standalone tool labeled “ESP Checker.” Instead, its ESP detection capabilities are embedded within two key features: and the Technology Lookup tool (powered by SEMrush’s partnership with data aggregators). To check a competitor’s ESP, follow these steps:
For those also interested in competitor analysis, Semrush provides an Email Dashboard within its Traffic & Market Toolkit, which allows you to see how competitors drive traffic through their own email campaigns. Email Verifier: Clean Your Lists & Maximize Deliverability
Find out if different departments are using unauthorized email tools.
Once cleaned, users can export the updated, verified lists back into a file for use in their preferred marketing platform. Why Checking Your Email List Matters