> Frank S. Bernhardt wrote:
>
>> 3) When they do a telnet to us on port 25 they complain about a
>> 'long'
>> delay and then the 554 message.
>>
>>
>
> Most probably they block your ident lookup and send no reject packet
> (tcp RST or icmp port-unreachable). So it's not your fault, but you
> could surely lower your timeout (rfc1413_query_timeout) from the 30s
> default (I have 2s).
>
yes, this is a good advice, but how do we explain the:
>> 4) From a supposed print screen I see that they get this [a 554
>> error] right after the 'Escape character is...' message with no
>> greeting message displayed.
>>
>>