[cobalt-users] Mailing list error

["Accounts @ NIA" <accounts@xxxxxxxxxx>]

Hi,
we are trying to send some stuff to a mailing list on our qube and get a
return email with the following error.

message too long (>40000 chars)

I assume we cant send mails bigger than 40K ?

How can I change the setting for this?

Tia
Bill