> On 12 Jul 2021, at 3:22 pm, post...@ptld.com wrote: > > debug_peer_level (default: 2)
The smtp(8) manpage SYNOPSIS reads: smtp [generic Postfix daemon options] This is then seen again in: SEE ALSO ... master(5), generic daemon options ... That manpage reads: ... The following command-line options have the same effect for all daemon programs: ... -v Increase the verbose logging level. Specify multiple -v options to make a Postfix daemon process increasingly verbose. > The increment in verbose logging level when a nexthop destination, remote > client or server name or network address matches a pattern given with the > debug_peer_list parameter. > > The default is 2, but what does 2 do? Equivalent to "-v -v" > What does 1 do? Equivalent to "-v" > Is there a 0? No, the minimum acceptable value is 1. It makes no sense to set it to zero. > How high do the numbers go? As high as your platform's INTMAX, but in practice all but first few values are equivalent to maximum verbosity. (Currently anything over 3 is equivalent to 3, but this is not set in stone). > Where can i read more info about the levels? There is no such documentation, the debug levels are subject to change without notice. They're debugging aids, not stable interfaces. You can try "1" and if that's not enough then "2". Avoid "3" or higher, you won't like the results. -- Viktor.