On Tue, Feb 11, 2003 at 09:42:59AM -0500, Wizard wrote:
> I'm writing a script to do email filtering, and I have some questions:
> 1.> These are all valid email address:
> [EMAIL PROTECTED]
> [EMAIL PROTECTED]
> [EMAIL PROTECTED]
> [EMAIL PROTECTED] <- this is valid, but not standard
What's non-standard about it? (apart from the spelling)
> The problem is that last one with DOMAIN.CC format. Not having a TLD is NOT
> TYPICAL for UK domains (there are only 7?), but are there other non-US
> countries using a similar format?
Indeed it's not typical, but it is standard in that it has all the right
records in all the right places like the DNS*. And yes, PLENTY of other
countries have longword.cc-style domains. France, for instance, and
Germany, and Canada.
* - I assume, I haven't bothered looking it up
> This is what I am expecting for
> international emails, and others will presently fail:
^^^^^^^^^^^^^
it always makes me laugh when people misuse this word to mean "not in my
country".
> USER_NAME[_W_DOTS*]@CNAMES*.DOMAIN.TLD.CC[:PORT?], an extreme being like
> this:
> [EMAIL PROTECTED]:8021, where 'TLD' is required
> if 'CC' is present.
> Is this a problem?
Yes, it's a problem. It won't work.
> 2.> Do email addresses ever have port numbers appended, like this:
> [EMAIL PROTECTED]:24
If they do, then they're invalid AFAIK.
> 3.> Are there any US domains that don't look like this:
> CNAMES*.DOMAIN.TLD[:PORT?]
Yes, anything in .us.
In general, trying to divine what is and is not a valid mail domain without
looking it up in the DNS is doomed to failure.
--
David Cantrell | Sysadmin/programmer for hire | [EMAIL PROTECTED]
One person can change the world, but most of the time they shouldn't
-- Marge Simpson
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