Klitzing qmail log
A blast from the past!
Klitzing qmail is a variant of the popular qmail mail transfer agent (MTA) developed by Dan Bernstein. The "klitzing" part refers to the fact that the author, Arnt Gulbrandsen, is a Norwegian who uses the nickname "Klitzing" (which is a Norwegian word for "clipping" or "cutting").
The qmail log format is similar to other Unix mail logs, but with some additional fields specific to qmail. Here's a breakdown of the typical fields you'll see in a qmail log:
date
: The date and time the message was received or sent.remote
: The IP address of the remote host that sent or received the message.local
: The IP address of the local host that sent or received the message.sender
: The sender's email address.recipient
: The recipient's email address.status
: A status code indicating the outcome of the message delivery (e.g.,250
for successful delivery,550
for rejection, etc.).reason
: A brief reason for the status code (e.g., "User unknown" for a550
status code).size
: The size of the message in bytes.id
: A unique identifier for the message.
Here's an example of a qmail log entry:
2023-02-20 14:30:00 klitzing qmail-1.03: remote=192.0.2.1 local=192.0.2.2 [email protected] [email protected] status=250 reason=OK size=1024 id=1234567890
In this example, the message was received from IP address 192.0.2.1
and sent to IP address 192.0.2.2
. The sender's email address is [email protected]
, the recipient's email address is [email protected]
, and the message was successfully delivered (status code 250
). The message size is 1024 bytes, and the unique identifier is 1234567890
.