Hello,
Could you have the users setup their email client at home to
authenticate to the email server so that they can send their outgoing email
from the Exchange server. Are they using Outlook from home? Even if they are
not using Outlook I would think that you could find a mail client that would
use POP3/SMTP and allow the user to authenticate with the Exchange server in
order to send mail. Of course the mail would be sent using the domain of the
Exchange server and this assumes that they have a domain and Exchange account.
As far as a policy is concerned an open relay is never a good idea
and your server will just end up on a blacklist if the server remains open for
relay. That point should be enough of a reason to justify closing the open
relay.
Chris
Chris Knieriem
Potomac Computer Care
920 National Highway
Cumberland, MD 21502
301-777-3914
cknier...@pccareonline.com
From: Don Andrews [mailto:don.andr...@safeway.com]
Sent: Wednesday, April 28, 2010 3:58 PM
To: MS-Exchange Admin Issues
Subject: [MALWARE FREE]RE: Is an internal open relay allowed?
I don't think RFC rules have exceptions for public schools. Seems to me that
if the domain they are trying to send from is ok with it (i.e. includes your IP
in their SPF record etc.), it's ok - otherwise many receiving domains would not
accept the attempted send as your IP was not a valid sender of email for that
domain.
________________________________
From: Vandael Tim [mailto:tim.vand...@khlim.be]
Sent: Wednesday, April 28, 2010 12:24 PM
To: MS-Exchange Admin Issues
Subject: Is an internal open relay allowed?
Hello all,
Any of you guys here that is familiar with the RFC rules for email?
Are we as a public school allowed to send mail from other domains?
The reason I'm asking it is an internal discussion we have here.
We are moving to exchange 2010 and the old open internal relay is going to be
shut down in a few months.
So we have a lot of users complaining about the fact that they are not being be
able to send mail from their home address through our exchange system.
Anyone that can point me to the right information about this issue?
Thnx!
Met vriendelijke groeten,
KHLim
Katholieke Hogeschool Limburg Associatie
KULeuven
http://www.khlim.be<http://www.khlim.be/>
Tim Vandael
ICT Systeembeheerder
Campus Diepenbeek, Agoralaan gebouw B, bus 1, 3590 Diepenbeek
T +32 11 23 08 94 - F +32 11 23 07 89 - G +32 478 40 52 36
tim.vand...@khlim.be<mailto:tim.vand...@khlim.be>
Contact Potomac Computer Care for a SPAM and MALWARE firewall to protect your
business email from threats.
Contact Potomac Computer Care for a SPAM and MALWARE firewall to protect your
business email from threats.
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