Issue
What information is contained in the SMTP logs, and how often is it updated?
Solution
Detailed mail logs list all SMTP transactions for the selected day chronologically. The logs roll-over at midnight, when the oldest log file is replaced by the new day's log file.
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Most web browsers provide a way (such as shift-click) to save a linked file directly to your disk without displaying it. If you find that the detailed logs are often too large for your browser to display, you can save them to disk and view them using your favorite text editor. |
The format of each transaction record includes:
- Originator - The from address
- Queue ID followed by a message ID
- Event time followed by a value - The time the message is received and the type of message; there can be more than one event time and value
For example:
originator
queue-id <message-id@example-host-name>
evt-time event
where event is one of the following:
- received - followed by the connection type, number of bytes, number of recipients, and the "host-received-from"
- queued recipient
- sent - followed by the connection type (see below), then the recipient list
- CLR: cleartext
- LCL: local delivery
- TLS: secure
- Split from-followed by the QID number
The table below provides details on the information found in the SMTP logs.
|
Statistic |
Description |
|
originator |
The sender of the message |
|
queue-id |
The unique ID that identifies the message within the mail queue |
|
message-id |
The unique ID that identifies the message |
|
Sending hostname |
The fully qualified domain name of who sent the message originally |
|
evt-time |
The time the event occurred |
|
num-bytes |
The number of bytes in the message |
|
num-recipients |
The number of recipients of the message |
|
host-received-from |
The host from which the message was received |
|
recipient |
The address of the recipient |
|
recipient-list |
A comma-separated list of recipients to which the message was sent |
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