>>>>> On January 1, 2025 Wietse Venema via Postfix-users 
>>>>> <postfix-users@postfix.org> wrote:

> Greg Klanderman via Postfix-users:
>>
>> Hello all and Happy New Year!
>>
>> Is there some documentation for the list of tags, their meanings,
>> and the format for the value after '=' for the 'disconnect from'
>> log lines?

> This was described in RELEASE_NOTES-3.0,

Ahh a little while back then!

> but not in the manpages or
> README files. I suppose it could go into the smtpd manpage?

That'd be fine; you know better than I.. either way I will have to
make a note of where it ends up as I'm sure I will not remember the
location by the next time I need it.

> You can find a copy of the text here:
> https://mirror.reverse.net/pub/postfix-release/official/postfix-3.0.0.RELEASE_NOTES
> Look under "session fingerprint". It has many examples.

Great, thank you!

I understand presence of any '/' indicates some error.

Is 'unknown' just any unknown command?  And the number before the '/'
will always be 0?

To detect a "successful" session which didn't attempt to deliver mail,
is that indicated by no '/' and no 'data='?  Hmmm and also no 'bdat='?

The examples are good, but if documenting this, could you list all
current tags, with a very brief description for each?  I guess they
are all the (first words of the) SMTP commands plus 'commands=' and
'unknown='?  Anything else?  If not maybe just list the non-SMTP
commands?  Are there [E]SMTP commands that would never appear?

> The order of commands shown in the logging may be different from the
> order in which the client sent commands, but it is rarely a problem.

Agreed.

cheers,
Greg
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