| Re: testing email deliverability... [message #186045 is a reply to message #186043] |
Thu, 05 June 2014 04:55   |
Keith Keller
Messages: 5
Registered: June 2014
Karma:
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Junior Member |
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["Followup-To:" header set to comp.os.linux.misc.]
On 2014-06-05, The Natural Philosopher <tnp(at)invalid(dot)invalid> wrote:
>
> I meant without me having to write such code,, but it seems someone
> already hass..
>
> http://www.tienhuis.nl/files/email_verify_source.php
As I and others have already stated, this method is not reliable in
general, as some MXs will accept all email for its domains whether
the destination address is valid or not, in order to defeat exactly this
sort of query (done by spammers, but what defeats them defeats this
too).
All this script will do is tell you whether the MX accepted the message.
It can never tell you whether the MX delivered it to a valid mailbox,
discarded it, or generated a bounce.
--keith
--
kkeller-usenet(at)wombat(dot)san-francisco(dot)ca(dot)us
(try just my userid to email me)
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