[Greylist-users] relaydelay issues

[kamal]

I am facing a couple of issues with relaydelay

1. relaydelay.pl gives an error like:
Argument "2,2" isn't numeric in numeric gt (>) at
/usr/local/bin/relaydelay.pl line 381

Sometimes a similar error comes at line 891
Both lines have: if($rowids > 0)

Is it harmless, or some problem?

2. An invalid recipient(unknown user) is also tempfailed for the first
time. Isn't it better to let sendmail reject such recipients, because
database remains small? Can I configure this?

Thanks.