Mass Upload Rules
You’re able to provision mass import of whitelist and blacklist rules, per the following:
Quarantine Portal -> Rules
Select ‘Upload Rules’, and select your csv file
Format of CSV file should be @sender,@recipient/@domain,action (‘W’ for whitelist entries, and ‘B’ for blacklist entries, case sensitive), please include a header row, as well.
When the upload is complete, the results will be listed and include any entries that had issue.