dovecot - Aug 2020 - Adjusting logging with the "remote" syntax

According to the docs, we can use ?local? and ?remote? blocks to change
configuration directives.

In my current setup (Mail-in-a-box using Nextcloud, which is configured for IMAP
authentication), my mail logs are spammed with local logins. I really don't
need these reports, but still want to retain login logs for remote IPs. So I set
the following in my configuration:

remote 127.0.0.1 {
  info_log_path = /dev/null
}

When I run "doveadm -n -f remote=127.0.0.1?, it does seem to understand it:

---
# 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.21 (92477967)
...
info_log_path = /dev/null
...
remote 127.0.0.1 {
  info_log_path = /dev/null
}
---

However, I?m still getting spammed with local login reports:

Aug 12 12:17:13 imap-login: Info: Login: user=<user at domain.tld>,
method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=29798, TLS,
session=<FGVJhbCsstt/AAAB>
Aug 12 12:17:13 imap(user at domain.tld): Info: Logged out in=305 out=2277

I've also tried logging to a specific file, instead of /dev/null, but no
file was created. So there must be an issue with my understanding.

How can I prevent logins from localhost from being logged without sacrificing
logs for all logins?

-Jason Young

I wanted to follow up on this message. Is there any way to disable info logging
for when the ?remote? is localhost?
> On Aug 12, 2020, at 12:48 PM, Jason Young <jason at singlebit.tech>
wrote:
> 
> According to the docs, we can use ?local? and ?remote? blocks to change
configuration directives.
> 
> In my current setup (Mail-in-a-box using Nextcloud, which is configured for
IMAP authentication), my mail logs are spammed with local logins. I really
don't need these reports, but still want to retain login logs for remote
IPs. So I set the following in my configuration:
> 
> remote 127.0.0.1 {
>  info_log_path = /dev/null
> }
> 
> When I run "doveadm -n -f remote=127.0.0.1?, it does seem to
understand it:
> 
> ---
> # 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.4.21 (92477967)
> ...
> info_log_path = /dev/null
> ...
> remote 127.0.0.1 {
>  info_log_path = /dev/null
> }
> ---
> 
> However, I?m still getting spammed with local login reports:
> 
> Aug 12 12:17:13 imap-login: Info: Login: user=<user at domain.tld>,
method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=29798, TLS,
session=<FGVJhbCsstt/AAAB>
> Aug 12 12:17:13 imap(user at domain.tld): Info: Logged out in=305 out=2277
> 
> I've also tried logging to a specific file, instead of /dev/null, but
no file was created. So there must be an issue with my understanding.
> 
> How can I prevent logins from localhost from being logged without
sacrificing logs for all logins?
> 
> -Jason Young