https://webmail.1and1.com/
https://webmail.perfora.net/

https://admin.1and1.com/

http://faq.1and1.com

En "Email Address" hay que poner la dirección completa:

adolfo@di-mare.com carmen@di-mare.net

1and1	di-mare.net	https://admin.1and1.com/
Dotster	di-mare	http://www.dotster.com