[[chapter_stats]] Statistics ========== {pmg} provides a useful and feature-rich statistics interface that allows administrators to quickly get an overview of the overall workload and easily identify problems. The statistics are displayed for a selected period, which by default is the current day. This period can be changed to any other day, a whole month or even a whole year. [thumbnail="screenshot/pmg-gui-statistics-general.png", big=1] On the main statistics page there are three graphs with additional data: 'Total Mail Count':: Shows the total mail flow as a graph and the following details: * Total Mails * Incoming/Outgoing Mails (as count and percentage) * Virus Outbreaks (the amount of outgoing virus mails) * Avg. Mail Processing Time * Incoming/Outgoing Mail Traffic 'Incoming Mails':: Displays the count of incoming mails from each of the following categories, including their percentage of the total incoming mail volume: * Incoming Mails * Junk Mails (Virus + Spam + Greylisted + SPF rejects + RBL rejects) * Greylisted Mails * Spam Mails (Mails with Spamscore >= 3 and not containing a virus) * SPF rejects * Bounces (mails with an empty envelope-sender address) * Virus Mails 'Outgoing Mails':: Displays the count of outgoing mails from each of the following categories, including their percentage of the total outgoing mail volume: * Outgoing Mails * Bounces (mails with an empty envelope-sender address) * Virus Mails [[pmgstats_spam_scores]] Spam Scores ----------- [thumbnail="screenshot/pmg-gui-statistics-spam-scores.png", big=1] The `Spam Scores` panel shows the distribution of the different spam scores for the selected time period. Note that you can also select a whole month or even a whole year as period to display. [[pmgstats_viruses]] Virus Charts ------------ [thumbnail="screenshot/pmg-gui-statistics-virus-charts.png"] The `Virus Charts` panel gives you an overview of how many virus files were tried to be transmitted through your mail infrastructure, but got caught early by the {pmg}. The list shows which and how often a certain viruses were detected in the selected time period. See xref:pmgconfig_clamav[Virus Detector Configuration] for details about how {pmg} scans for virus files. [[pmgstats_hourly_distribution]] Hourly Distribution ------------------- [thumbnail="screenshot/pmg-gui-statistics-hourly-distribution.png", big=1] The `Hourly Distribution` shows the amount of incoming and outgoing mail per hour for the selected time period. For periods spanning a whole month or a whole year the arithmetic average of mail volume in an hour will be shown. [[pmgstats_postscreen]] Postscreen ---------- [thumbnail="screenshot/pmg-gui-statistics-postscreen.png"] Contains a chart with the RBL (Real-time Blackhole Lists) and `pregreet` rejects for the selected time frame. [quote, Postfix Postscreen Howto] ____ For each connection from an SMTP client, postscreen(8) performs a number of tests in the order as described below. Some tests introduce a delay of a few seconds. postscreen(8) maintains a temporary allowlist for clients that pass its tests; by allowing allowlisted clients to skip tests, postscreen(8) minimizes its impact on legitimate email traffic. ____ For more info about postscreen and pregreet tests, see the https://www.postfix.org/POSTSCREEN_README.html[postscreen readme]. [[pmgstats_domain]] Domain ------ [thumbnail="screenshot/pmg-gui-statistics-domain.png"] The `Domain` view is split into two tabs, one for incoming and one for outgoing mails. Each tab shows a list of domains that received mails in a selected time frame, with stats for: * traffic amount * counts for: ** mail flow to a domain ** how many viruses were detected, ** and how many mails were classified as spam [[pmgstats_sender]] Sender ------ [thumbnail="screenshot/pmg-gui-statistics-sender.png", big=1] The `Sender` panel contains a list of e-mail addresses that sent mail out in the selected time frame, with a total count, how many viruses were detected and how big these mails were. If you click on one of these e-mail addresses, you see a detailed list of recipients, complete with size, date and time. [[pmgstats_receiver]] Receiver -------- [thumbnail="screenshot/pmg-gui-statistics-receiver.png"] Similar to the `Sender` panel, this contains a list of e-mail addresses that received e-mails from outside, with a total, spam and virus count, as well as the total mail size. If you click an entry, it shows a detailed list of mails with size, date, time, virus and spam score info. If the `Use advanced statistics filters` option (`Configurations -> Options`) is enabled, only active accounts will be listed. Active accounts are those that sent mail during the selected time period or up to 90 days before. [[pmgstats_contact]] Contact ------- [thumbnail="screenshot/pmg-gui-statistics-contact.png"] This contains the list of external recipients that received mail from this {pmg}, coming in on the internal port, with total count, virus count and size. If you click an entry, it shows a list of mails with size, date and time. If the `Use advanced statistics filters` option (`Configurations -> Options`) is enabled, active accounts will be filtered out, since they can already be seen in the `Receiver` panel. Active accounts are those which sent mail in the selected time frame or up to 90 days before.