Mail Auto respond and ispcp-arpl-msgr

[bsn]

In my ispcp-db-keys.pl

$main::db_pass_key = '{KEY}';

$main::db_pass_iv = '{IV}';
What is KEY and IV?

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Thanks!
IV and KEY from
/var/www/ispcp/engine/ispcp-db-keys.pl
copy to
/var/www/ispcp/engine/messenger/ispcp-db-keys.pl