How does this exactly work?

I want to use this class in a software i am developing. I will be using this to validate emails of my clients who will use the software. I wanted to know if the emails being passed into the function are stored somewhere and how exactly is the verification being done? Will there be any security issue of the emails being public or anything like that?

Good day.
The class does not store data. It only emulates the process of transferring letters between servers. Depending on the response of the mail server, we get the result.
affects the work:
1. Mail server security policy
2. Correct SPF Records in DNS
support.dnsimple.com/articles/spf-r ...


This class cannot 100% guarantee that the specified address does not exist.
for example
1. The mail server was not available during verification
2. Your IP got a list of spammers

Regards Konstantin

Thankyou for the information. I have some more question. Does this use any third party API's to emulate that mail exchange? and can this be used to send actual emails or is it just to validate the emails?

Hi Konstantin,

I would like to test your php code.
Can I simply place your code on a server and try it wihtout modification
or do I need to adjust some hardwired parameters?

In the latter case, which are they and what typical values would need to be entered?

Thank you for posting this simple but useful filter online,

Philippe Fullsack, coder from Canada