Allow duplicates emails

[mercadeoshop]

Hello i want know if is possible have duplicates emails on one list

 

[twisted1919]

That is not possible.

 

[frm.mwz]

Hello i want know if is possible have duplicates emails on one list

In a strict sense no, but if you consider various email providers' alias policies, you can do e.g. for gmail a number of address extensions and hence add control emails easily to each list.