Limitation on the number of lines to display on Xymon

list Kern Doe
Fri, 21 Aug 2020 16:49:53 +0000 (UTC)
Message-Id: <user-940d739ab03e@xymon.invalid>

Hello Xymon gurus,

What is the limit? What parameter that control this? It looks like my Xymon limits to around 1800 lines, it actually does not send, it fails with this error:
 /usr/libexec/xymon-client/bb: Argument list too long
I have `cat abc.out` in the command, to get around I have to use `head -1800 abc.out` 

Thank you in advance.
Kern --