If your internal network uses an IP whitelist to restrict access to the public network, you must update your settings. You can change the restriction to apply to mailbox domain names or add the following IP address segments to the whitelist. This prevents access issues with the mailbox service that can occur because of changes in domain name resolution.
Note
If you purchased a version of Alibaba Mail other than the China-specific version, see List of Alibaba Mail domain names and IP addresses.
Main domain names and IP address segments
mail.xc.aliyun.com
106.11.232.79
106.11.226.233
47.246.99.222
smtp.xc.aliyun.com
120.55.70.85
120.26.70.135
47.246.180.54
imap.xc.aliyun.com
114.55.30.174
47.99.116.215
47.246.99.223
pop.xc.aliyun.com
121.199.78.217
101.37.76.105
47.246.180.112
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