[geeklog-devel] FW: email validation

[Jason Whittenburg]

+ is never valid in a domain name, a domain name must start with a
letter and could be followed by zero or more letters, digits and
hyphens, but cannot end with a hyphen.  See RFC 1034 and RFC 1035 for
domain names.

It used to be you wouldn't use + in an email address because of UUCP
routing, etc...  But, + should be technically legal.  According to the
RFC 822 you can use chars in the range #33..#126 except ()<>@,;:\/".[].
Also, according to the RFC, extended characters (#128..#255) cannot be
part of an email address, however many mail servers accept them and
people use them.

-----
Jason Whittenburg
Internet Security Systems, Inc.
404.236.4043 

-----Original Message-----
From: geeklog-devel-admin at lists.geeklog.net
[mailto:geeklog-devel-admin at lists.geeklog.net] On Behalf Of Rob
Griffiths
Sent: Tuesday, February 18, 2003 3:54 PM
To: geeklog-devel at lists.geeklog.net
Subject: RE: [geeklog-devel] FW: email validation


I don't think this is in the domain side, I think it's in the address
side.  From what I've seen in the forum site registration (which accepts
a plus sign), lots of people are using things like
"myname+somesite at mydomain.com" now as a means of trapping spam.  Their
ISP ignores whatever's after the "+" and delivers the email to them, and
then they can see who has spammed their name...

I can just tell him "we're looking into it" for now.

-rob.

> -----Original Message-----
> From: geeklog-devel-admin at lists.geeklog.net
> [mailto:geeklog-devel-admin at lists.geeklog.net] On Behalf Of Tony Bibbs
> Sent: Tuesday, February 18, 2003 12:46 PM
> To: geeklog-devel at lists.geeklog.net
> Subject: Re: [geeklog-devel] FW: email validation
> 
> 
> Never heard of it.  I'd wait until we get a few more requests
> before I'd 
> consider it 'worthy' of our attention.
> On Tue, 18 Feb 2003, Dwight Trumbower wrote:
> 
> > To the best of my knowledge domains can only have letters,
> numbers and
> > hypens. There are hosting services that want  you to use a
> + between you
> > name and domain for accessing email but it is not valid to
> send a email in
> > that format.
> > 
> > Dwight
> > 
> > At 11:37 AM 2/18/2003 -0800, you wrote:
> > >Is this true or false?  I'm pretty sure it doesn't work,
> but is a '+'
> > >legal in an email address?
> > >
> > >-rob.
> > >
> > >-----Original Message-----
> > >From: Kevin Scaldeferri [mailto:kevin at scaldeferri.com]
> > >Sent: Tuesday, February 18, 2003 11:33 AM
> > >To: webteam2 at macosxhints.com
> > >Subject: email validation
> > >
> > >
> > >Your website's email validation for new user registration does not 
> > >appear to accept "+" as a valid character in an email
> address.   This is
> > >
> > >an error.
> > >
> > >_______________________________________________
> > >geeklog-devel mailing list
> > >geeklog-devel at lists.geeklog.net
> > >http://lists.geeklog.net/listinfo/geeklog-devel
> > 
> > Dwight
> > dwight at trumbower.com
> > 
> > _______________________________________________
> > geeklog-devel mailing list
> > geeklog-devel at lists.geeklog.net
> > http://lists.geeklog.net/listinfo/geeklog-devel
> > 
> 
> -- 
> Tony Bibbs          "I guess you have to remember that those who don't
> tony at tonybibbs.com  hunt or fish often see those of us who do as      
>                     harmlessly strange and sort of amusing. When you  
>                     think about it, that might be a fair assessment." 
>                     --Unknown
> 
> 
> _______________________________________________
> geeklog-devel mailing list
> geeklog-devel at lists.geeklog.net
> http://lists.geeklog.net/listinfo/geeklog-> devel
> 

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