On the one hand, I believe in big brands. TOM has more than 20 years of experience in mailbox operation and is quite mature in all aspects. All the problems we have raised have mature solutions.
On the other hand, it is rich in functions and basic, such as unlimited capacity and enterprise groups. Enterprise management can manage domain names independently, backup independently, manage the permissions of enterprise address book, set the permissions at different levels, and so on.
In addition, it can be customized.
Finally, the security problem of enterprise mailbox can not be ignored. TOM has developed security functions such as email encryption, which is very reassuring.