Do you have clients using and e-mail address in your contact list? Please note that has terminated its e-mail services for member since June 1, 2015 :

Also, will terminate its e-mail services for member from July 25, 2015 :

Please remind your clients who are using or as their email address to change their contact email, and remove these email address of and from your contact list to avoid bounce back in future.

Best Regards,

Reasonable Software House Limited –
Hong Kong | Shenzhen | Guangzhou | Beijing | Shanghai

T: (852) 3590 4869  F: (852) 3014 4839
A: 1806 Laford Centre, 838 Lai Chi Kok Rd., Cheung Sha Wan, Kowloon, HK