Milter-greylist

--- In milter-greylist@yahoogroups.com, Matt Kettler <mkettler@...> wrote:

> 
> True, the back reference will also pick up:
> 
> 1a4443K23_1
> 
> Which may or may not be desirable.

I must be missing something here; how does

[0-9]+([^0-9])[0-9]+\1[0-9]+\1[0-9]+

pick up

1a4443K23_1

?

(See also http://www.fileformat.info/tool/regex.htm:

Test  	Target String  	matches()  	replaceFirst()  	replaceAll()  
lookingAt()  	find()  	group(0)  	group(1)
1 	1a4443K23_1 	No 	1a4443K23_1 	1a4443K23_1 	No 	No)


>