What Is Email Verification?
Email verification is a process of verifying if an email address exists and is currently working (source).Basically, you are trying to know if an email is valid.
You may ask: why do I need email verification? The thing is that this process helps you reduce the number of invalid emails and bounce rate (a percentage of emails that haven’t reached the recipient).
How Can You Check Email Address Validity?
There are a few ways you can test email validity.Method 1: Syntax Check
Syntax check is used to check the correctness of email addresses for spelling errors, extra spaces, commas, dots, etc. It is the simplest way to remove incorrect emails.Method 2: Domain Record Check
Another checking method is to test the domain to which the email address belongs.Method 3: Server Ping
This method is based on SMTP (Simple Mail Transfer Protocol). It works the following way: your email verifying software server sends a request to an email address to see if it responds.Method 4: Verification Email
You might also try to send a verification email with a validation link to your list. It is pretty straightforward: you just ask users to сonfirm the email address.Method 5: Catch-all Check
Catch-all domains are the type of domains that can create some problems for your sender’s reputation.They are designed to accept all emails directed to them, even if no certain email address is created.
For example, anyone can write a gibberish email address, add the catch-all domain name, and such an email will be accepted. At the same time, sending messages to these emails might affect your hard bounces.
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