bad email sanitisation issue

[Kangbooboo]

hi, we're using 2.1.5 and when someone added an email
address with quotes (") we got errors a bit everywhere
and mails not getting sent ^^

I looked into changelog up to 2.1.8 which is current
stable and this looks closely to bug #1030228, but
different character.

I would suggest adding the quote character to the
filter (ascii 042)
Or better, rewritte the filter but the reverse way.
only allow [a-zA-Z0-9\-\_\.\+] for email addresses ?
(i made this up from memory but email addresses cannot
contain much more ? maybe im saying something stupid here)

[http://sourceforge.net/tracker/index.php?func=detail&aid=1498213&group_id=103&atid=100103]

[Kangbooboo (kangbooboo)]

i forgot to say this is done when you're not using the web
interface to input the email+name (else name or mail with
quotes gets rejected as unknown)

[Mark Sapiro (msapiro)]

First of all, local-parts of email addresses are allowed to
be quoted per RFC2821 sec 4.1.2, but more importantly, can
you be more specific as to
1) the form of the address with " that caused problems
2) how it was added if not via the web interface
3) what specific errors/problems result

I note that I am able to add an address of the form

Real Name <"<email address hidden>">

via Mass Subscribe, and the resultant address receives mail
just as if it weren't quoted.