Скачать или смотреть How to check if an email address exists in 2024

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as of 2024, it is important to note that verifying the existence of an email address without sending a verification email is not a reliable or recommended practice. this is because email servers and providers have strict policies in place to prevent the unauthorized checking of email addresses due to privacy and security concerns.

however, you can still perform some checks to validate the format and domain of an email address using regular expressions and domain verification. here is a general guide on how you can check the format and domain of an email address in python:

1. install the `py3dns` library to perform dns lookups in python:


2. use the following python code to check the format and domain of an email address:



in the code above:
we first define a regular expression to validate the format of an email address.
we then extract the domain from the email address and perform a dns lookup on the domain to check if it exists.
if the email address passes both the format and domain checks, we consider it valid.

please note that this method can only verify if the domain exists but not if a specific email address exists within that domain. it is always recommended to use proper email verification techniques, such as sending a verification email with a unique token to confirm the existence of an email address.

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