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Not working reliantly for me. Addresses that definitely exist are reported as not existing. No info on the checks used. So, this could even just be a clever way to collect email addresses through a simple form.
Exactly what I thought after pressing submit on my personal email (which was then reported as not existing). D'oh.
Not working reliantly for me. Addresses that definitely exist are reported as not existing. No info on the checks used. So, this could even just be a clever way to collect email addresses through a simple form.
https://www.troyhunt.com/im-sorry-but-your-email-address-is-...
1. Check if email is wellformed, with an *extremely* lenient algorithm. Basically, do we have .*@.* ?
2. Check that the domain is real, has an MX record, and the SMTP server in the MX record exists.
Worked for my person email attached to my domain. I agree with others in that explaining how this works would be very nice.
Heh, we all learned to disable VRFY 15-20 years ago. This fails both ways on my tests.
disable_vrfy_command = yes
smtpd_delay_reject = yes
smtpd_helo_required = yes
Email address validation is basically an impossible problem. In practice, the best strategy is: 1. Check if email is wellformed, with an *extremely* lenient algorithm. Basically, do we have .*@.* ? 2. Check that the domain is real, has an MX record, and the SMTP server in the MX record exists. Ok, send mail! The only way to verify after that is to send an email with a verification link and complete the circle.
I have a system where i have double wildcard so X@X.some.domain and your site fails
Error: Spam detection in use
This email does not exist or cannot be found