OTRS is able to send automatically email replies. So it's possibe to create
an email loop (of course we check bulk headers but other strange systems may not!).
Example 6-5. Kernel/Config.pm - PostmasterMaxEmails
[...]
# PostmasterMaxEmails
# (Max post master daemon email to own email-address a day.
# Loop-Protection!) [default: 40]
$Self->{PostmasterMaxEmails} = 40;
[...] |