Can't speak for the laws where you are but here there could be legal issues involved. For example we have some pretty strict Public Record laws so we would have to add their personal emails sent with that address to our archival system. I would ask them what business use or educational use this home email thing provides. That is always the final test for us. If it does not server educational needs we are not likely to support it.
If their home ISP uses SPF (Sender Permitted From) records then their email might bounce. SPF is an addition to your DNS records that says only these servers are allowed to send email for our domain. Not used a lot but often enough I am surprised you have not had issues with that. But let's change your terminology. You are not (I hope) running an open relay. You are allowing authorized users/IP addresses to send email with any from address they want. That is not an open relay, it is a controlled relay and that is allowable. It can be a good solution for traveling people for example..... From: Vandael Tim [mailto:tim.vand...@khlim.be] Sent: Wednesday, April 28, 2010 3:24 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>
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