Blacklist_checkExist
Check whether emails existed on Backlist
Syntax
Blacklist_checkExist(array emails);
Arguments
emails: array. Array of emails string
Return type
Dictionary
Example
array emails = {"an4@test.com", "an6@test.com"};
Blacklist_checkExist(emails);//{"an4@test.com": False, "an6@test.com": True}