Sheldon Hearn wrote:
> This may affect your decision to enable your check, which I've enabled
> as:
>
> deny senders = :
> condition = ${if >{$rcpt_count}{1} {1}}
> message = invalid use of null sender
>
Note that this should be:
deny senders = :
message = invalid use of null sender
condition = ${if >{$rcpt_count}{1} {1}}
i.e. the message to be returned needs to be listed _before_ the
condition that could cause the denial. Otherwise the sending server
could get something ambiguous like "administrative prohibition".