localhost ~]$ perl deletemailpop3s.pl connecting to pop.wanadoo.fr.. ok Use of uninitialized value in concatenation (.) or string at deletemailpop3s.pl line 28. mail box size: 12914033 313 unread mail(s). last read mail was number Use of uninitialized value in numeric eq (==) at /usr/lib/perl5/5.8.8/Net/POP3.pm line 311. Use of uninitialized value in numeric eq (==) at /usr/lib/perl5/5.8.8/Net/POP3.pm line 311. ...etc...