Internet Service Provider (ISP)

What is the meaning of Internet Service Provider (ISP)?

ISPs are companies that provide internet access and webmail to users. ISP may also describe all mail clients collectively. ISPs include ATT, Verizon, Comcast, AOL, and Earthlink, among others.

Discover more

• Return Path Address
• Email Verification
• Email Validation
• Email checker, email validator, or email verifier
• Tabs
• Abuse Emails
• Hard Bounce
• Account Under Review – MailChimp