Hi,

I have some more small suggestions, but I don't want to start a separate thread for each ;-)

* First is a question:
Is default_delivery_status_filter affecting Postfix's messages (a) in the SMTP session, (b) in the logfile, and/or (c) in DSNs? I can't see any difference in (a) and (b), so I guess it's (c) only?! => Please add that to https://www.postfix.org/postconf.5.html#default_delivery_status_filter

* At https://www.postfix.org/postconf.5.html#debug_peer_level please add allowed values: 0?, 1, 2, 3?,...

* At https://www.postfix.org/postconf.5.html#smtp_tls_security_level and https://www.postfix.org/postconf.5.html#smtpd_tls_security_level is the default really empty? Or `none`?
If empty, then please add what this means in contrast to `none`.

* I would suggest to add a trailing semicolon to all lookup SQL examples (e.g. at https://www.postfix.org/PGSQL_README.html and https://www.postfix.org/pgsql_table.5.html). Why: In my Postgres-Log, I see the queries exactly as I write them in Postfix (i.e. it looks like Postgres doesn't append a semicolon automatically).
But without one, it's easier to run an SQL injection with a string like:
1; DELETE FROM users;
This is probably not possible anyway, but closing the statement with a semicolon looks even more secure and certainly won't do any harm, so I think it's a good idea to show this as best practice.

* delay_logging_resolution_limit at https://www.postfix.org/postconf.5.html#delay_logging_resolution_limit Yeah, the bullets are better IMO. However, the negative exponent ^- is almost illegible (looks like some font rendering error ;-) - so I would still say it's better to just add this nice list you posted in your last mail. And "round off" is mainly used in a non-mathematical context, e.g. "round off the evening". The function we're talking about is called "round" in all programming languages (even in MS Excel :-) and I'm sure that's the terminology must people here are used to.


Thanks!

Cheers,
Thomas
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