I Installed wireshark to sniff the packet and I got as results:
QMT query DNS for PTR of QMT IP Server DNS Reply with Answer 42.743055 199.202.64.74 -> 199.202.64.7 DNS Standard query PTR 74.64.202.199.in-addr.arpa 42.744670 199.202.64.7 -> 199.202.64.74 DNS Standard query response PTR subspace1.megaquebec.net ----- Original Message ----- From: Charles Ferland To: qmailtoaster-list@qmailtoaster.com Sent: Tuesday, October 14, 2008 4:24 PM Subject: [qmailtoaster] QMT - Problem with Reverse lookup Hello all I have a problem with reverse lookup with QMT installation. I have a lot of PTR request from one IP. I have -H option for all TCPserver services at this moment. When I check qmail logs files, I can see only IP and no reverse lookup check. I would want to know how to debug that ? Regards Charles
