Bug#312361: exim4: Exim incorrectly rejects "'" as illegal character in email address

[Marc Haber]

On Tue, Jun 07, 2005 at 01:58:07PM -0600, Simon Wood wrote:
> I understand the sentiment of the check (preventing spam, etc.)
> however I think that "'" shouldn't be included as it's a real
> character that is used in names.
> 
> I'm sure my wife's correspondant (Miss O'Brien) would agree :-)

It is, however, pretty exotic to use that character in mail addresses.
Please note that "Miles O'Brian <miles.obrian@ds9.example>" would be
legal as our check only applies to the actual mail address.

' is a shell metacharacter and could be dangerous in cases where mail
addresses are used in scripts.

> We ought to consider that Debian is moving more mainstream and thus to 
> less astute administrators (such as myself).

Which is why we'd like to fail to the safe side.

Greetings
Marc

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