Where can we find a report which says what emails were sent, which were rejected, etc.?
Carl
You cannot. Such reporting does not exist. There is a weekly summary that is sent each Sunday (or Monday) at 3AM but I have found it to not be very helpful personally.
HOWEVER this does NOT mean that the capabilities or data is not already there. I have made an unsupported modification to my setups by adding pflogsumm. I just review it on demand from the command line, but it is very simple to set this up to send a daily report via email if you so desired.
Sample output:
Postfix log summaries for Jul 25
Grand Totals
messages
338 received
370 delivered
0 forwarded
1 deferred (1 deferrals)
2 bounced
398 rejected (51%)
0 reject warnings
0 held
0 discarded (0%)
4674k bytes received
4885k bytes delivered
11 senders
9 sending hosts/domains
75 recipients
19 recipient hosts/domains
Per-Hour Traffic Summary
time received delivered deferred bounced rejected
--------------------------------------------------------------------
0000-0100 6 8 0 0 9
0100-0200 10 10 0 0 9
0200-0300 6 10 0 0 15
0300-0400 3 3 0 0 22
0400-0500 15 15 0 0 10
0500-0600 7 7 0 0 7
0600-0700 2 10 0 0 10
0700-0800 11 13 0 1 12
0800-0900 14 16 0 0 11
0900-1000 22 22 0 0 12
1000-1100 28 30 0 0 12
1100-1200 32 32 0 0 11
1200-1300 15 15 0 0 8
1300-1400 20 20 0 0 26
1400-1500 20 27 0 0 36
1500-1600 18 18 0 0 28
1600-1700 16 16 0 0 25
1700-1800 25 28 0 0 38
1800-1900 14 13 0 0 23
1900-2000 8 9 1 0 20
2000-2100 15 15 0 0 13
2100-2200 12 12 0 0 15
2200-2300 9 11 0 1 10
2300-2400 10 10 0 0 16
Host/Domain Summary: Message Delivery
sent cnt bytes defers avg dly max dly host/domain
84 1102k 0 3.8 s 9.6 s yahoo.com
38 476937 0 1.7 s 2.8 s gmail.com
24 537k 0 2.7 s 5.6 s hotmail.com
Beyond this point, the data is confidential, but if you wish to see a full sample output look at: https://www.server-world.info/en/note?os=Ubuntu_18.04&p=mail&f=9
Just FYI in answer to the original question … MiaB sends the following report out on a weekly basis to the administrator email.
Scanning logs from 2019-06-24 03:00:01 to 2019-07-01 03:00:01
13986 Log lines scanned, 9256 lines parsed in 1.14 seconds
Sent email
══════════
sent hosts │ timespan
─────────────────────────────────────────────┼──────────────
miab@box.miabdnstest.ml 2 1 │ 16:09 - 16:11
─────────────────────────────────────────────┼──────────────
Totals: 2 1 │ 16:09 - 16:11
┬ totals by time of day:
│ hour 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
│ sent 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0
└─────────────────────────────────────────────────────────────────────────────
Received email
══════════════
received │ timespan
───────────────────────────────────────────┼─────────
miab@box.miabdnstest.ml 4 │ 4.4 days
root@box.miabdnstest.ml 1 │ 13:37
───────────────────────────────────────────┼─────────
Totals: 5 │ 4.42 days
┬ totals by time of day:
│ hour 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
│ received 0 0 0 1 0 0 0 0 0 0 0 0 0 2 0 0 2 0 0 0 0 0 0 0
└─────────────────────────────────────────────────────────────────────────────────
User logins per hour
════════════════════
imap smtp │ timespan
────────────────────────────────────────────┼──────────────
miab@box.miabdnstest.ml 60.5 0.1 │ 16:08 - 15:19
────────────────────────────────────────────┼──────────────
Totals: 60.5 0.1 │ 16:08 - 15:19
┬ totals by time of day:
│ hour 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
│ imap 60 60 59 59 60 59 60 58 60 60 60 60 60 58 58 20 71 60 60 60 60 62 60 59
│ smtp 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0
└─────────────────────────────────────────────────────────────────────────────
yes, this would be perfect if it can also crank out the underlying details then it could be imported other tools for tracking.
sudo apt install pflogsumm
read the man page after installation.
It does … I just couldn’t show you from a working system due to client privacy concerns. You get more information that you could possibly know what to do with. If you follow the link I provided you get a complete sample report (it just has very little data).