I've registered an account yesterday, and even though I'm able to send e-mail from my Zoho account, if I send an e-mail from any other account to contacto@digiverse.com.ar, nothing appears on the Zoho Inbox.

Hotmail doesn't return the Delivery Status Notification (Failure) e-mail after I send mail to my Zoho account, so the e-mails are going through (who knows where, though!).

Thanks for providing this service free of charge, I can't wait to solve this problem and start using Zoho Mail :D