Do Real Email Verifiers Exist?

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businessing

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There are many email checkers that scrape the web, the domain, and then say confidently whether an email is valid, probably valid, or unknown/risky.

Are there tools that actually email a list you upload, and report on whether it bounced or not?
 
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businessing said:
There are many email checkers that scrape the web, the domain, and then say confidently whether an email is valid, probably valid, or unknown/risky.
Click to expand...
Thats not how email verifiers work.

Most will first check if the structure is valid (if it's<something>@<domain>.<TLD>) or not, if that's valid then it will do a DNS lookup for the domain name, if that's valid then it will do a MX lookup for the domain name to find the mailservers, if that's valid then it will try making an SMTP connection to the mailservers.

If the mailservers respond, it will then try to send some more requests to check if the mailserver is set to CATCHALL or not. And then there are some more checks for role based mailiboxes (like info@ or abuse@ etc) and for Disposable Addresses.

Nobody does email verification by scraping for emails. If they do you're getting scammed.

And the whole point of email verification is to check if an email is valid WITHOUT sending an email. You're just asking to be blacklisted if you send emails to anybody just to "verify" them for a service they did not opt into.
 
businessing said:
Are there tools that actually email a list you upload, and report on whether it bounced or not?
Click to expand...

You can find open-source code that validates email addresses based on error codes using a ping system, rather than sending actual emails for verification.

Cheers :)
 
But checking with servers is unreliable and blocked by many mail exchange servers. That's my point. How do you check these reliably except by sending an email...?
 
xcodes said:
You can find open-source code that validates email addresses based on error codes using a ping system, rather than sending actual emails for verification.

Cheers :)
Click to expand...
From experience, they don't tend to live up to services that specifically perform this task reliably.
 
i can verify for a fee if anyone wants.. i collect bounces so your list will be 99% bounce free after., youll have way less warming up todo and an blast pretty hard from clean servers without much issue.. pm me if interested
 
You can Atomic Mail Verifier, you'll need proxies with open 25 port
 
businessing said:
But checking with servers is unreliable and blocked by many mail exchange servers. That's my point. How do you check these reliably except by sending an email...?
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More than a month late to this but here's a reply anyways.

1. You don't send an email, you establish an SMTP connection. That isn't the same as sending an email.

2. Checking with servers is the most reliable method as a third-party. If you are a firstparty (like if you have a website where users sign up with email) you can actually just send an actual verification email like you might have seen.


And you are right that it's unreliable. It just rhat there's no better way without pinging the mailservers and even those can fail because of the CATCHALL configurations most of them have.
 
businessing said:
But checking with servers is unreliable and blocked by many mail exchange servers. That's my point. How do you check these reliably except by sending an email...?
Click to expand...
Buy 100 gmails accounts send clean and dummy emails.
If you receive emails with delivery raport like this one, than that email not exist.
thread-17071790-5095965358532983591.jpeg
 
anuman said:
i can verify for a fee if anyone wants.. i collect bounces so your list will be 99% bounce free after., youll have way less warming up todo and an blast pretty hard from clean servers without much issue.. pm me if interested
Click to expand...
What tools do you use for verification?
 
I used this one to verify emails and once finished, and I can just send bulk emails to these available accounts after verification. I did some tests about my own valid emails and invalid address.
1690870028202.png
1690870039557.png
 
> Do Real Email Verifiers Exist?

No. Hotmail/GMX/Gmail/Yahoo/AOL will show valid on invalid emails.
 
Short answer, yes. This depends on the logic they use for verification.
 
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