To complete the validation of the address you should re-process the verification within a small delay of time (usually 5-10 minutes), until the server answers with a different message.We are sorry but we had to abort your free email validation because of the heavy load our systems are experiencing. Also please note that our paid email validation service does not have this kind of limitation.

If you actually check the Google query I linked above, people have been writing (or trying to write) RFC-compliant regular expressions to parse email addresses for years.

But what if I told you there were a way to determine whether or not an email is valid without resorting to regular expressions at all? The activation email is a practice that’s been in use for years, but it’s often paired with complex validations that the email is formatted correctly.

To fix this problem, you implement an activation system where, after registering, I am sent an email with a link I must click.

This is to verify that I actually own that email address before my account is activated.

A socket connection error occured while connecting to the mail exchanger which serves the email address domain.

Please try again in a few minutes: if the problem persists, then the domain for the email address can't accept email messages. This is not an indicator that the mailbox actually exists (or does not) but, often, a message sent by external mail exchangers with greylisting enabled.A timeout has occured while connecting to the mail exchanger which serves the email address domain.Please try again in a few minutes: if the problem persists, then the domain for the email address can't accept email messages.With this free email validation service, you can easily verify an email address and confirm if it is valid, properly formatted and really exists. NET developers who need email address validation in their solutions.Just type the email address you want to validate, select the desired level of verification and submit the form. It features a very fast, multi-threaded verification library that can validate hundreds of email addresses per minute.Email Checker is a simple tool for verifying an email address. It extracts the MX records from the email address and connect to mail server (over SMTP and also simulates sending a message) to make sure the mailbox really exist for that user/address.