[Nottingham] emails containing spaces

Dan Caseley dan at caseley.me.uk
Tue Oct 16 14:14:55 UTC 2012


I came across the same thing writing a test script a few years back.

The weirdest thing from the RFC that I recall is that addresses can go
across multiple lines!

Dan
On 16 Oct 2012 15:01, "Mike Cardwell" <nlug at lists.grepular.com> wrote:

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> On 16/10/12 14:50, T.J long thing wrote:
>
> > it's come to my attention that it may be possible to have spaces in
> > an email address providing it's not part of the domain section.
> > Also a possibility they can be case sensitive has anyone else come
> > across this? can any one confirm these or is it just rumor?
>
> Email addresses are case sensitive. "mike at example.com" and
> "Mike at example.com" are different email addresses. It just so happens
> that most implementations treat them the same. There's no reason why
> that has to be the case though.
>
> The specification allows all sorts of insane local parts in email
> addresses. Some good examples:
>
> !#$%&'*+-/=?^_`{}|~@example.org
> "()<>[]:,;@\\\"!#$%&'*+-/=?^_`{}| ~  ? ^_`{}|~.a"@example.org
>
> Taken from:
>
> https://en.wikipedia.org/wiki/Email_address#Valid_email_addresses
>
> - --
> Mike Cardwell  https://grepular.com/     http://cardwellit.com/
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