On 04-Sep-97 Dr. Rich Artym wrote:
>In message <m0x6J45-00076xC@???>, Greg A. Woods writes:
>
>> Come on guys! I wasn't talking about anyone who has half a clue. I'm
>> talking only of dial-up IP users who have dynamic IP# assignments and
>> who don't even know how to spell SMTP or VRFY, never mind know what a
>> queue is!!! 99.9% of the common users have no business making direct
>> SMTP connections to anyone and they should not be permitted to do so.
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>Gosh.
>
>Does it ever occur to you Greg that one of your customers might well
>say with exactly the same degree of conviction as yourself, "99.9% of
>self-appointed censors have no business making decisions that limit
>the freedom of others and they should not be permitted to do so." ?
I have to agree that dialup users of consumer ISP's should not be allowed to
make port 25 connection outside their network.
This is NOT censorship. It does not block transmission of mail in any way, it
simply requires that the mail go through the ISP mail server and is logged.
SMTP is not designed for hosts with intermittant connectivity. That is best
left to an MX host with 24x7 connectivity and the intermittant dialup site can
collect the mail using UUCP over TCP/IP. Outbound mail could be deposited in
the same transaction. This is much easier on the system resources of the MX
host as a queue run is not required every time a remote hosts requests its
mail, it simply dumps the spool to the requesting site. I MX host for hosts in
the US, Canada, and Australia in this manner.
The purpose of such port 25 blocking is to make it easer for the ISP to kill a
spamming account as they will have hard copy of the transactions and it allows
remote sites to narrow the number of hosts that they will accept mail from
making their network more secure and spam free.
I can think of no reason that a dialup customer would ever need to connect to a
distant host directly.
---
George Bonser
Debian/GNU Linux See
http://www.debian.org
Linux ... It isn't just for breakfast anymore!
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