collecting emails with opt-in ?

[2mmy]

Which is the best mailinglist/newsletter script with opt-in

that can be used on several websites no matter on which servers with one admin?

free one would be the best :)

[Cleo]

Here you go
http://dadamailproject.com/

[cd34]

http://www.phplist.com/

is another one that is pretty good.

I prefer dadamail over phplist though.

[DangerDave]

Another vote for DaDa |thumb

[2mmy]

Thanks guys :)