Steve Holden <[EMAIL PROTECTED]> writes: > Ben Finney wrote: > > I don't "validate" email addresses by regular expression. > > > Just as a matter of interest, are you expecting that you'll find out > about the undeliverable ones? Because in many cases nowadays you > wont, since so many domains are filtering out "undeliverable mail" > messages as an anti-spam defence.
I wouldn't expect a program to treat a user-supplied email address as known-good until receiving a confirmation email with a cookie, or some out-of-band confirmation (e.g., the email addresses are seeded by some trusted source). Until then, it's an untrusted piece of user-supplied data, to be kept around for a limited time pending confirmation, and then discarded. -- \ "Man cannot be uplifted; he must be seduced into virtue." -- | `\ Donald Robert Perry Marquis | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list