Hi,
Does anyone know if it is possible to check if a supplied email address is actually an alias for another address ? This would be useful because we have a voting system that sends a confirmation to the voter's email address. Because some guys want to vote twice, they just create a lot of aliasses. I want to prevent this. I don't mind that this check isn't immediate (it will possibly require to access the mailserver).
Thanks a lot,
Henk
It depends on what kind of mailserver you are talking about, how that mailserver is set up, and whether the person you are worried about multiple voting is any good at all. In essence: no, there's no real way for you to know this.
-spp