validating an email address from server

  • Thread starter Thread starter yochessyo
  • Start date Start date
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yochessyo

Hi,
I would like to validate email addresses.
I am not interested to validate it with a regex expression but from
the email server where the addresses are.
I would like to query this server and know if the address is valid or
not.
Thank you for your help.
 
yochessyo said:
Hi,
I would like to validate email addresses.
I am not interested to validate it with a regex expression but from
the email server where the addresses are.
I would like to query this server and know if the address is valid or
not.
Thank you for your help.
Click to expand...

There is an SMTP and Pop3 command to do this however it doesn't work any
longer on anyserver I've looked at. Most of them always return that the
Accoutn exists so that spammers can't get a list of good email addresses
from a server.
 
Than you for your response.
Can you give me the code of the way you did please.

Anyway even if it doesn't help, there must be a solution.
When you send an email with outlook for exemple. If the address is not
valid you will receive a notification that the address doesn't exist so
they must be a way to detect if the address is valid.
I would like for example to indicate to the mail server the address for
sending the message that the address is not valid.

see you
 
Hi Sebastian,

I think it is with you the oposite, but this would be a greath spam tool, I
think even that it is used when I look at the email adresses used on the
spam I get now.

Cor
 
sebastien chesney said:
Than you for your response.
Can you give me the code of the way you did please.

Anyway even if it doesn't help, there must be a solution.
When you send an email with outlook for exemple. If the address is not
valid you will receive a notification that the address doesn't exist so
they must be a way to detect if the address is valid.
I would like for example to indicate to the mail server the address for
sending the message that the address is not valid.

see you
Click to expand...

Your best bet if you want to validate email addresses is to send an email to
the address and see if you get the bad address reply. Hate to be a dick but
as I said the command to validate email address will always return true and
doesn't work and isn't a require SMTP command (You can look it up yourself
if you wish)
 
Mike Bulava said:
There is an SMTP and Pop3 command to do this however it doesn't work any
longer on anyserver I've looked at. Most of them always return that the
Accoutn exists so that spammers can't get a list of good email addresses
from a server.
Click to expand...

Its only SMTP and it was VRFY. But yes, because of SPAM most servers hard
code it to true no matter what you ask.


--
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"Programming is an art form that fights back"


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Your best bet if you want to validate email addresses is to send an email to
the address and see if you get the bad address reply. Hate to be a dick but
as I said the command to validate email address will always return true and
doesn't work and isn't a require SMTP command (You can look it up yourself
if you wish)
Click to expand...

The problem is that I didn't receive a bad address reply when I send
the message via vb.NET(I do receive if I send the same message via
outlook).
Maybee I have to add something to let the mail server know where to
send a bad address reply? Do you have any idea?
 
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