| Re: testing email deliverability... [message #186041 is a reply to message #186037] |
Thu, 05 June 2014 03:05   |
Jerry Stuckle
Messages: 2598
Registered: September 2010
Karma:
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Senior Member |
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On 6/4/2014 8:48 PM, The Natural Philosopher wrote:
> I have web contact pages which are used by anyone to send enquiries.
>
> I want to make sure that anyone using them has a valid reply address set
> in a web form BEFORE I forward the message on to the site administrators.
>
>
> Mailer is exim, and that's currently but not necessarily invoked by the
> php mail() function.
>
>
> what I want is a function like
>
> is_valid_mail("user12345(at)gmail(dot)com")
>
> that will return true or false if gmail accepts the user as known (yes
> the spam is always @gmail.com) WITHOUT having to write a dns mx lookup,
> then connect to socket 25 and etc etc etc..
>
> exim -bt tells me if the domain is valid, but not the user.
>
> I am not particular how its achieved - anything can be merged into the
> existing code.
>
> anyone done this?
>
>
The only way you can do this is to send an email to the address they
specify and require a response. While you can determine if a domain
name is invalid, there is no way to determine whether an email within a
domain is valid without requiring a response from that email address.
I know you won't see this, but others who might have a similar question
will.
--
==================
Remove the "x" from my email address
Jerry Stuckle
jstucklex(at)attglobal(dot)net
==================
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