Meaning of "protocol !indexer-worker"

[Teemu Huovila]

On 17.03.2017 13:11, Angel L. Mateo wrote:
> Hello,
> 
>     I'm configuring dovecot 2.2.28. Comparing with previous versions I have found now in 10-mail.conf the config:
> 
> protocol !indexer-worker {
>   # If folder vsize calculation requires opening more than this many mails from
>   # disk (i.e. mail sizes aren't in cache already), return failure and finish
>   # the calculation via indexer process. Disabled by default. This setting must
>   # be 0 for indexer-worker processes.
>   #mail_vsize_bg_after_count = 0
> }
> 
>     I can see that indexer-worker is the index service in dovecot.
> 
>     But I don't what the '!' means in front of the service name. Any who can explain it to me?
> 
The '!' means the limit is enabled for all other services except indexer-worker. Inder worker is the one you need to complete the background job, so limiting it mightnot be wise.

br,
Teemu