[Mailman-developers] Re: [meta-sig] mailman problems

[Barry A. Warsaw]

>>>>> "Guido" == Guido van Rossum <guido@cnri.reston.va.us> writes:

    Guido> I think this is bogus; as Dmitri's mail shows it is a
    Guido> maintenance nightmare waiting to happen.  If you really
    Guido> want to do a validation of an email address, use DNS to see
    Guido> if there's a host by that name or an MX record for that
    Guido> domain.  What is the reason for validating addresses in the
    Guido> first place?  If the address is invalid, the mail will
    Guido> bounce and the user won't be registered.  Simple.
    Guido> Effective.

I agree with Guido on all counts.  TLD's probably don't change that
often, but if they do, you'll have to propagate changes to everyone
who's running MM.   That's DNS's job!

-Barry