Autor: Marc Sherman Datum: To: exim-users CC: Esther Schindler Betreff: Re: [exim] What would you tell the CIO in an
"ABCsofEmail"overview?
Kjetil Torgrim Homme wrote: >
> well, a minimum is "always require explicit opt-in from the customer".
> even if you can get away with less legalistically speaking, it will
> probably cause backlash from irate customers.
Double-opt-in: user sends opt-in request, you reply asking for
confirmation, user replies to your reply with confirmation. Anything
less is trivially spoofable and ends up hurting the senders' reputation.
