I tried to subscribe to the Newsletter, but it said "We do not send emails to the domain in your email address." What does it mean? What should I do now?

Spammers worldwide use mobile domains for sending spam or even worse, spoofing genuine email addresses thereby violating fundamental rights of online identity and trust! 123greetings.com uses state-of-the-art security & email verification systems which maintain a comprehensive list of such generic mobile domains thereby preventing spammers from abusing online identity and trust.
If you are using an email address which has a mobile domain name attached to it; kindly use an alternate email address to subscribe with us!