Email addresses - case sensitive?

[Maggoty]

Are email addresses still case sensitive?

We have a difference of opinion in the office.

Thank you in advance

Ali

[DungeonJayne]

No.

Try sending yourself an email, and mix the cases. It still comes to you.

[Buenchico]

'Officially' the first part of an email address (i.e. before the '@') is case sensitive.

However, (quote):
"Hardly any email service or ISP does enforce case sensitive email addresses, returning messages whose recipient's email address was not typed correctly (in all upper case, for example)"

Source:
http://email.about.com/od/emailbehindthescenes /f/email_case_sens.htm

Chris

[DungeonJayne]

ok

[Maggoty]

Thanks Jayne, unfortunately my email address isn't case sensitive so I would get them anyway. I just wondered if ANY email addresses are case sensitive.

basically we had a work experience girl in and her "job" was to register email addresses. She typed them all in upper case - even those where the client wrote out the email as

[email protected]

and even when they stipulated that the M B and S were upper case.

So I just need to know if its OK to convert all to lower case or whether after doing that I have to go through those that have writeen their address as a mix of upper and lower.

cheers, I will cross fingers and hope that the ISP's act as Chris has indicated

xx

[ACtheTROLL]

Buenchico is of course right

The rule of thumb we teach is ALWAYS work in lower case
Unless ItsAKeywordOrOtherString that you know requires it.

same with spaces dashesdots blah blah

Internally we occasionaly use case sensitive URLs - it's a sort of extra layer of security