Say there are two files File1.txt and File2.txt each file contains email addresses. I need to remove all the email addresses from file1.txt if the are present in file2.txt >=2 times. 

I need to do this to make sure someone isn't emailed more than two times. 

I've seen other people use comm or diff for similar questions, but I'm not sure what to do in this case. 

Example

```
File1.txt:  
abc@gmail.com  
def@gmail.com  
ghi@gmai.com  
jkl@gmail.com  

File2.txt:   
abc@gmail.com  
abc@gmail.com  
acb@gmai.com  
ghi@gmai.com  
jkl@gmail.com  

```

Output (Files from file1 that aren't in file2.txt more than 2 times) 

```
File3.txt:   
def@gmail.com  
ghi@gmai.com  
jkl@gmail.com    

```

Also assume this file is 100,000+ records so it can't be done manually