iBLJa1Gu008596: .. did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA

[Peter Bonivart]

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Oliver Hookins wrote:
> Peter Bonivart wrote:
>
>> Peter Bonivart wrote:
>>
>>> Ping does not connect to 53/tcp, it's a completely different mechanism.
>>
>>
>>
>> Sorry for replying to my own post but I for some reason wrote 53 (DNS)
>> when I of course meant 25 (SMTP). Sorry for the confusion.
>>
>> --
>> /Peter Bonivart
>
>
> Ping doesn't connect to port 25 either. It's a different protocol
> altogether. Ping uses ICMP whereas SMTP uses TCP. DNS most often uses
> UDP. Ping can't be altogether relied on to determine connectivity with a
> host as it might be blocking ICMP traffic.

Uhm...I already know that and tried to explain it to Steve who asked if
the log lines could come from pings.

--
/Peter Bonivart

--Unix lovers do it in the Sun

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