jabbslad

From https://hunter.io/email-verifier :-

* Valid format: First, we verify the format of the email address is correct and looks something like "[email protected]".

* Gibberish Email Address: We check to ensure the address doesn't look like a random email address. For example, [email protected] * doesn't pass the test.

* Disposable Email Address: We check if the email address has a domain name used for temporary email addresses.

* Webmail Email Addresses: We verify if the email address uses a webmail like Gmail or Yahoo.

* Presence of MX Records: We check if there are MX records on the domain. If there aren't, the email address can't receive emails.

* Presence of SMTP Server: This check is successful if we are able to connect to the SMTP server (indicated in MX records).

* SMTP Check: We test the email address and see if it bounces or not, without sending an email.

* Accept-all Domain: We check if the server has a catch-all policy which accepts all the email addresses.

For the "SMTP check", they will be doing something like this, programatically: https://www.labnol.org/software/verify-email-address/18220/

Hat tip to the software author for showing some morals and not trying to bleed consumers dry with a monthly service cost for something which is not a service. He has just won some custom from me.

It's working as designed and is not a bug. The help documentation describes the functionality:-

1) https://www.dropbox.com/help/167/en 2) https://www.dropbox.com/help/20/en

"The problem is that Goldman's traders use a special computer language called "Slang" that was developed for internal use only."

^^^ What in God's name are traders doing going anywhere near a programming language? Surely this is some mistake.