This topic describes how to add or delete the blacklist.
What is the blacklist?
Blacklist is one of the security features of anti-spam and high-risk emails. Emails from the email addresses or domains in the blacklist will be sent to Spam or directly deleted depends on the Anti-spam settings.
1. The blacklist setting takes effect for all email accounts in the current organization;
2. Postmaster can set up a maximum of 500 blacklists.
How to add a blacklist?
Log on to the Alibaba Mail by postmaster account and enter Domain Management Background page. Click Security-->Blacklist Management-->Add to Blacklist, select the blacklist type to be added, enter email addresses, domain names, IP addresses or IP range and click Ok to save the change. 
How to delete a blacklist?
Log on to the Alibaba Mail by postmaster account and enter Domain Management Background page. Click Security-->Blacklist Management, select the blacklist that needs to be deleted and click Delete.
