check email address rather than domain?

[nik10078]

Hi, can email verifier able to check whether a specific email address is valid or not rather than just the domain? and how to do the setting of it?

Please advice.

Many thanks

 

[stanbusk]

Are you sure port 25 is open for you? You can find out following this instructions: How to find out whether port 25 is blocked by your ISP?