Basically, port 25 blocking by Mindspring allows them to control
the spammers that relay rape servers. Granted, your users are not
intending to spam, however in the world of anti-spam large ISP's
are being pounded daily for the amount of relay rape conducted
by their users. And everyone expects those ISP's to be responsible
for the actions of their users.
How many times have you heard a mail admin complaining about
spammers using their server to relay their spew? The first LART
that is sent goes to the spammers provider who in turn has to sift
through endless logs and records to determine the origin of the spam
and then terminate the account. Forcing those lusers to use their
own SMTP servers they have a better chance of killing the account
and stopping the spam run before it reaches the masses.
AOL is getting ready to implement something similar to this also.
As an ISP, I can understand this as any time one of our users decides
they are going to get rich sending spam I end up catching hell over
it from hundreds of complaints.
This is where itis headed though. If ISP's, server admins, etc do not
start enforcing some type of regulation then you can count on it that
someone will.
SMTP is merely a relay protocol. Telling your remote users to
utilize Mindsprings SMTP servers when they are on the road is
okay. Only the headers would indicate that it went through a
Mindspring server. Their address, etc would remain the same.
Sorry for the long spew.
Dusty
----- Original Message -----
From: "Scott R. Morgan" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, March 08, 2000 11:21 PM
Subject: [IMail Forum] Port 25 blocking
> I have set up our server running the SMTP service on port 25 behind our
> firewall. We have two domains running on two published IP's mapped by our
> firewall to the two internal IP's on the server. Everything works great
> except that several of our users are using Mindsping as their ISP when
> traveling. Minspring has recently implemented port 25 blocking. They
will
> not let any port 25 traffic off of their network (nor will they allow any
> onto their network from outside, so our users can't send mail from our
field
> location networks on their Mindspring accounts...)
> The result has been that our users cannot send mail through our server. I
> have tried mapping a different port to the port 25 internally, but the
> problem is that our firewall can only map one port from the external to
the
> internal port 25, resulting in our users able to send mail, but we no
longer
> receive any mail from external servers.
> Any suggestions to my dilemma would be greatly appreciated.
> As an aside, my original posting to this list was rejected because I
> couldn't send it through the subscribing email server @ SRMSERVICES.COM
> Please help, since my customers do understand why they have to deal with
> this BS from Mindspring
>
> Scott R. Morgan
> [EMAIL PROTECTED]
> SUPERIOR RESTAURANT MANAGEMENT SERVICES
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> (512) 416-9621 (Fax)
>
> USPA A-29450
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>
>
>
>
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