[Users] X-Mailer information

[Ralf Mardorf]

Hi,

my mail's headers show something that doesn't satisfy me.

X-Mailer: Claws Mail 3.11.0 (GTK+ 2.24.25; x86_64-unknown-linux-gnu)
X-Operating-System: Arch Linux

From were does Claws get the information about the used operating
system for the X-Mailer line?

"unknown-linux-gnu" doesn't look that nice.

[rocketmouse at archlinux ~]$ uname -o
GNU/Linux
[rocketmouse at archlinux ~]$ cat /etc/issue
Arch Linux \r (\l)

Is there a way to customize the X-Mailer by variables or
commands?

Regards,
Ralf