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Email Addresses Case Sensitive?



 
 
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  #1  
Old May 18th 06, 11:41 PM posted to microsoft.public.windows.inetexplorer.ie6_outlookexpress
CWLee
external usenet poster
 
Posts: 35
Default Email Addresses Case Sensitive?


For years I have believed that email addresses are not case
sensitive. I now wonder if that is true. I received a
"change of email address" message from a friend that read
something like my new email address is
and if I use the reply button with his message my message
gets to him. If, however, I enter the address as
the message bounces, saying there is no
such party at the ISP.

Enlightenment please.

Thanks.

--
----------
CWLee
"I appreciate those who walk out from the edges with
torches or even in the dark with their hands out in front
of them. We need those explorers and weirdos. I am
so grateful when I find that I am not the first." - Sally
Amsbury.

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  #2  
Old May 19th 06, 01:03 AM posted to microsoft.public.windows.inetexplorer.ie6_outlookexpress
Bruce Hagen
external usenet poster
 
Posts: 10,211
Default Email Addresses Case Sensitive?

As far as OE is concerned, addresses are not case sensitive. I would find it
hard to believe that it is an AOL thing since I send to those unfortunate
users regularly without problems. It may be on your ISPs end, but definitely
not an OE concern.

Maybe they don't like the Yale and Harvard mix? eg
--
Bruce Hagen
MS MVP - Outlook Express
~IB-CA~

"CWLee" wrote in message
...

For years I have believed that email addresses are not case
sensitive. I now wonder if that is true. I received a
"change of email address" message from a friend that read
something like my new email address is
and if I use the reply button with his message my message
gets to him. If, however, I enter the address as
the message bounces, saying there is no
such party at the ISP.

Enlightenment please.

Thanks.

--
----------
CWLee
"I appreciate those who walk out from the edges with
torches or even in the dark with their hands out in front
of them. We need those explorers and weirdos. I am
so grateful when I find that I am not the first." - Sally
Amsbury.


  #3  
Old May 19th 06, 02:04 AM posted to microsoft.public.windows.inetexplorer.ie6_outlookexpress
Kuay Tim
external usenet poster
 
Posts: 491
Default Email Addresses Case Sensitive?

Hi CWLee,

Technically, the local mailbox part of the address is case sensitive, but
this is rarely enforced so that e-mail moves with fewer problems. It can be,
however.

The domain part of the address is not case sensitive.


--
Tim K.
aka Kuay Tim
MS-MVP - Outlook Express
Lynnwood, WA
*
"CWLee" wrote in message
...

For years I have believed that email addresses are not case
sensitive. I now wonder if that is true. I received a
"change of email address" message from a friend that read
something like my new email address is
and if I use the reply button with his message my message
gets to him. If, however, I enter the address as
the message bounces, saying there is no
such party at the ISP.

Enlightenment please.

Thanks.

--
----------
CWLee
"I appreciate those who walk out from the edges with
torches or even in the dark with their hands out in front
of them. We need those explorers and weirdos. I am
so grateful when I find that I am not the first." - Sally
Amsbury.


  #4  
Old May 19th 06, 02:47 PM posted to microsoft.public.windows.inetexplorer.ie6_outlookexpress
PopS
external usenet poster
 
Posts: 24
Default Email Addresses Case Sensitive?

The address you see, and which is in the From line of the email,
may NOT be the address used if you press Reply. E-mail headers
contain a "Return Path" which is the address the email will
actually go to. Actually, this can be done with OE also, if you
look in Accounts, Options, I forget which tab. There is a "reply
to" in addition to your email address there.
So, the aol address may not even exist, although you -think-
that's where you're replying to.
With OE, if you put the cursor in the email body and then press
CTRL-F3, you can look at all the headers; look for Return Path to
see where the mail actually goes. I don't know about other mail
readers; I do know AOL makes it difficult to see the headers if
you're on AOL.

HTH,
Pop


"CWLee" wrote in message
...

For years I have believed that email addresses are not case
sensitive. I now wonder if that is true. I received a
"change of email address" message from a friend that read
something like my new email address is
and if I use the reply button with his message my message
gets to him. If, however, I enter the address as
the message bounces, saying there is no
such party at the ISP.

Enlightenment please.

Thanks.

--
----------
CWLee
"I appreciate those who walk out from the edges with
torches or even in the dark with their hands out in front
of them. We need those explorers and weirdos. I am
so grateful when I find that I am not the first." - Sally
Amsbury.



  #5  
Old May 20th 06, 12:12 AM posted to microsoft.public.windows.inetexplorer.ie6_outlookexpress
N. Miller
external usenet poster
 
Posts: 908
Default Email Addresses Case Sensitive?

On Thu, 18 May 2006 15:41:10 -0700, CWLee wrote:

For years I have believed that email addresses are not case
sensitive. I now wonder if that is true. I received a
"change of email address" message from a friend that read
something like my new email address is
and if I use the reply button with his message my message
gets to him. If, however, I enter the address as
the message bounces, saying there is no
such party at the ISP.

Enlightenment please.

Thanks.


http://www.faqs.org/rfcs/rfc2821.html

Scan down to this section:

2.4 General Syntax Principles and Transaction Model

You will see that the "local-part" of an e-mail address, that is, the
part to the left of the '@' symbol, is _supposed_ to be treated as
case-sensitive; thus, and
are _supposed_ to be two different entities.

Assuming I interpreted that section properly...

--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum
  #6  
Old May 20th 06, 12:14 AM posted to microsoft.public.windows.inetexplorer.ie6_outlookexpress
N. Miller
external usenet poster
 
Posts: 908
Default Email Addresses Case Sensitive?

On Fri, 19 May 2006 09:47:48 -0400, PopS wrote:

The address you see, and which is in the From line of the email,
may NOT be the address used if you press Reply...


snip

Alas, that has nothing to do with the issue of case sensitivity in the
"local-part" of the e-mail address. That _was_ the OP's problem.

--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum
  #7  
Old May 20th 06, 12:20 AM posted to microsoft.public.windows.inetexplorer.ie6_outlookexpress
Michael Santovec
external usenet poster
 
Posts: 2,875
Default Email Addresses Case Sensitive?

The Internet standards allow the part before the @ to be case sensitive
(the part after the @ never is case sensitive).

However, very few ISPs use case sensitive e-mail addresses. As far as
I know, AOL is not case sensitive. I don't think any of the major ISPs
are.

Take a look at the Message Source (Ctrl-F3) for one of the messages from
your friend. Look for a "Reply To" header. If present, that's what is
used for replies. If not present, look at the "From:" header.

You may find what you friend sent as his new e-mail address is wrong.

--

Mike - http://pages.prodigy.net/michael_santovec/techhelp.htm


"CWLee" wrote in message
...

For years I have believed that email addresses are not case
sensitive. I now wonder if that is true. I received a
"change of email address" message from a friend that read
something like my new email address is
and if I use the reply button with his message my message
gets to him. If, however, I enter the address as
the message bounces, saying there is no
such party at the ISP.

Enlightenment please.

Thanks.

--
----------
CWLee
"I appreciate those who walk out from the edges with
torches or even in the dark with their hands out in front
of them. We need those explorers and weirdos. I am
so grateful when I find that I am not the first." - Sally
Amsbury.



 




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