How does Znuny decide on reply or reply and reply-all?

[kevindebie]

I'm trying to figure out how Znuny decides when to decide to draw a reply-all button and when not.
AFAIK there's no configuration variables to change this behavior, so there's hard coded logic for this I assume?

I have situations where i'm seeing a reply-all button when there's only one recipient, and I have situations reply all is missing despite someone in CC.
I have a strong suspicion it has something to do with the way some mail is forwarded, but I also don't fully understand how Znuny handles this.

One of the many Google results I searched for answeres suggest Znuny counts the amount of unique mail adresses that it sees in the headers minus the one that is attached to the queue or configured als a mail address?
Is this true/still the case?

[zzz]

The logic checks every visible address that sees/receives the message: the sender, addresses in the to field, and addresses in the Cc field. It then filters out every system address you have configured.

If the result is greater than one, it shows the “Reply All” function.

— Emin

[kevindebie]

Fantasticly clear, thanks!