We tried to fetch emails via POP3 from a Exchange 2003 server which
are sent from one local exchange account to an other local exchange
account. Fetchmail stopped parsing the message because the ip is missing
in the received header of the emails. Even if i use -1 as index the same
happen. That seems to be a bug for me .. Should it not just use
"127.0.0.1" and not try to parse it ? After adding a workarround which
catch the UnknownHostexception and add "127.0.0.1" this is solved.