CodePudding user response:
The so-called "mass", is not: a send operation, the information (data) sent to a group of members (receive)!Your description is empty!
What to mass? Is email, or something similar to QQ message, or a mass text messages (SMS)?
The problem is not clear, others how to give you an effective reply!
To say "principle", however, is not to "a group of members of the" one by one to send the same content,
If you can send a, don't make a little change can be "mass"??!!!!!!