Re: domain validation for e-mail addresses

["Patrick Townsend" <patownsend@xxxxxxxxxxxxxx>]

Joel,

Many sites will suppress ping and traceroute packets. You will probably need
to use the gethostbyname() function and see if it produces a result.

Patrick
---
IBM AS/400 communications, FTP automation, and eCommerce
software and consulting services.

http://www.patownsend.com

----- Original Message -----
From: Joel Fritz <JFritz@sharperimage.com>
To: MIDRANGE-L@midrange. com (E-mail) <MIDRANGE-L@midrange.com>
Sent: Thursday, September 07, 2000 9:54 AM
Subject: domain validation for e-mail addresses


> I've just started playing with gethostbyname() in hopes of validating
domain
> names on e-mail addresses we've collected (with people's permission <g>).
> These are mostly keyed in either by the customer on our web site or by
> customer service people.  Strangely enough, the addresses are not always
> valid.  We were hoping to correct the obvious typos and misspellings.
>
> I've been running a sweep over our master file checking the domains.  I've
> noticed that some domains like us.ibm.com show up as invalid. Ping and
> traceroute also give the same result.  Since us.ibm.com is something I've
> seen a lot on this list, I'm curious how this gets resolved into the
correct
> domain name.  I notice on the internet headers from messages from people
> whose address is @us.ibm.com that the domain part is a bit more complex
than
> it is in the from line.
>
> TIA
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